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SharePoint mobile app shows a white screen when opening Team Sites. Site Pages and document libraries open normally. Direct links to pages work. Changing the homepage to a brand-new blank page does not resolve the issue. The mobile client appears to redirect through /_layouts/15/mobile/mblwp.aspx and fails to load the site landing page
A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
HERES TO COPILOT TROUBLESHOOT I DID YESTERDAY
mobiletest
in the desktop - url displays as but when i click share and copy the link it is https://reinagroup.sharepoint.com/:u:/r/sites/REINAWORKSPACE/SitePages/[mobiletest.aspx](https://www.microsoft365.com/hwav2/chat/conversation/SPO_N2VmMDhiMGYtZDc1NS00NmEwLWJlNWQtYzQ5NzE2MGZkN2JmLGZlMWY4OTk5LWM4MWQtNGZkMS1hZWJjLWJkZGJhY2EyMTNiMyxhYTU2NzI3Yy1kMjc3LTQ2ZjgtYmE2OC04ODFiMjQ2ZTZiOTA_01Z32EDI4ZRCVCVIA7RZHZPELML3OTW5XG)?d=w2aaa88991fa04f8e97916c5edd3b76e6&csf=1&web=2&share=IQCZiKoqoB-OT5eRbF7dO3bmAY8
This is the clue I was looking for.
You've now proved all of the following:
That means we can now rule out:
❌ Home.aspx content ❌ News web parts ❌ Quick Links web parts ❌ Homepage page corruption ❌ Homepage assignment
The fact that a completely new homepage exhibits the same behaviour is the key result.
The mobile app is not actually failing on the page itself.
Earlier you captured a URL containing:
Plain Text
_layouts/15/mobile/mblwp.aspx?...default.aspx
That's SharePoint's mobile routing layer trying to resolve the site landing page.
Since:
the common denominator is the site landing/navigation experience, not the page.
On the affected phone, don't use the SharePoint app.
Open Chrome and browse directly to:
Plain Text
https://reinagroup.sharepoint.com/sites/REINAWORKSPACE/SitePages/mobiletest.aspx
(not the shared / :u:/r/ link)
I want to know whether:
mblwp.aspx and fails again.Are all affected sites:
and are there any sites that don't exhibit the problem?
For example:
If a brand-new Team Site also fails, I'd be leaning heavily towards a SharePoint Online/mobile application issue rather than anything specific to REINAWORKSPACE.
At this point, you have already done enough testing to conclude that the issue is not with Home or mobiletest themselves. The evidence points to the way the mobile client is opening the site, not the content of the page.
Sources
it threw up an error and asked me to switch to pc view which i did and it opened
That is a very strong indicator that the problem is the mobile view itself, not the page, not permissions, and not authentication.
Your test sequence now shows:
mobiletest.aspx exists and opens in desktop mode.mblwp.aspx).The fact that switching to PC view immediately works is the key result. That means:
The content can be rendered by SharePoint, but the mobile experience cannot render or route to it correctly.
At this point I would stop investigating page content and focus on the mobile experience itself.
You've effectively ruled out:
The evidence points towards either:
Open the site in Chrome on the phone and:
If that works consistently while the normal mobile view fails, that further confirms the issue is isolated to SharePoint's mobile experience.
For your users, a temporary workaround would be:
Raise a Microsoft 365 support ticket and provide the specific evidence you've gathered:
/_layouts/15/mobile/mblwp.aspx
mobiletest.aspx) exhibits the same behaviour.That's a very strong technical case that the issue lies in SharePoint's mobile experience rather than your site configuration.
One final question: is this happening on both iPhone and Android, or have you only tested on one platform so far?
Sources
why would it happen in sharepoint app tho?
Because the SharePoint app is not just a browser wrapped in an app.
What you've discovered is actually consistent with how the SharePoint mobile app works:
When you open a page from Site Pages, the app is opening the page directly (SitePages/Home.aspx or mobiletest.aspx). That works.+1
When you open the site, the app first tries to resolve the site's landing experience and navigation. Earlier you captured it redirecting through SharePoint's mobile handler:
Plain Text
_layouts/15/mobile/mblwp.aspx?...default.aspx
The strongest evidence is:
If the page were the problem, changing to a brand-new blank page would have fixed it. It didn't.
My honest assessment is that you've narrowed this down to one of two things:
A bug in the SharePoint mobile app or SharePoint Online mobile navigation layer affecting modern Team Sites.
A site navigation configuration common across your Team Sites that the mobile client is mishandling.
The fact that:
all points away from content and towards the mobile site-navigation experience itself.
If I were raising this with Microsoft, I'd summarise it as:
"SharePoint mobile app shows a white screen when opening Team Sites. Site Pages and document libraries open normally. Direct links to pages work. Changing the homepage to a brand-new blank page does not resolve the issue. The mobile client appears to redirect through
/_layouts/15/mobile/mblwp.aspxand fails to load the site landing page."
That's actually a very strong support case because you've already eliminated most of the normal causes.
Sources
Summarize key points for Microsoft support
Here's a concise support summary you can paste directly into a Microsoft 365 support ticket:
reinagroup.sharepoint.com
Users are unable to open SharePoint Team Site homepages from the SharePoint mobile app and mobile browsers.
The site loads correctly on desktop browsers, but when opened through the SharePoint mobile app or the site's Home navigation, the page displays a white screen or fails to load.
This issue affects multiple Group-connected SharePoint sites.
Plain Text
/_layouts/15/viewlsts.aspx
Originally the site homepage was:
Plain Text
/sites/REINAWORKSPACE/SitePages/Home.aspx
A brand-new blank page (mobiletest.aspx) was created and set as the site homepage.
Desktop browsers immediately began opening the new homepage correctly, proving the homepage assignment updated successfully.
However, the SharePoint mobile app still displayed a white screen when opening the site.
This demonstrates that the issue is not related to the original Home.aspx page content.
The test page contains only minimal content and no custom web parts.
When attempting to open the site from a mobile browser, SharePoint redirects through:
Plain Text
/_layouts/15/mobile/mblwp.aspx
The resulting error references:
Plain Text
/sites/REINAWORKSPACE/default.aspx
and reports:
"The web page might be temporarily down or it may have moved permanently to a new web address."
If the browser is switched to Desktop Site / PC View, the page loads successfully.
The issue appears related to SharePoint's mobile site navigation / homepage resolution layer rather than:
Please investigate the SharePoint Online mobile experience and the routing/redirect process used when opening Team Sites from the SharePoint mobile application.
Evidence regarding the original homepage and the test homepage was verified from the site pages themselves.+1
Sources
Explain how to submit this summary to Microsoft support
As a Microsoft 365 Global Admin (or SharePoint Admin), the easiest way to submit this is through the Microsoft 365 Admin Centre.
Go to the Microsoft 365 Admin Centre:
Select:
- **Support**
- **Help & support**
In the description box enter something like:
Plain Text
SharePoint mobile app and mobile browser issue affecting multiple Team Sites.
Site homepages show a white screen when opened from the SharePoint mobile app or site Home navigation.
Direct access to Site Pages works.
Document libraries work.
OneDrive mobile works.
Desktop access works.
The problem persists after changing the homepage to a brand-new blank page.
Please see attached diagnostic summary.
When prompted, choose:
- **SharePoint Online**
- **Site access/navigation**
- **Mobile app**
Create the ticket and paste the full summary we prepared into the support request.
Go to:
Select Help & support (top-right question mark icon).
Raise the ticket against SharePoint Online.
Have these ready:
Tenant: reinagroup.sharepoint.com
Example site:
https://reinagroup.sharepoint.com/sites/REINAWORKSPACEExample affected user(s)
iPhone/Android version
SharePoint App version
Approximate date the issue started
Screenshot of the white screen
Screenshot of the mobile error referencing:
Plain Text
/_layouts/15/mobile/mblwp.aspx
The fact that a newly created test homepage (mobiletest.aspx) also exhibits the issue while opening correctly when accessed directly.
Plain Text
SharePoint Mobile App - Team Site Home Navigation Fails (White Screen) While Site Pages and Libraries Open Successfully
Based on all the testing you've done, you've already gathered far more diagnostic information than Microsoft usually receives in an initial ticket, which should help them narrow it down quickly.+1
mobiletest
in the desktop - url displays as but when i click share and copy the link it is https://reinagroup.sharepoint.com/:u:/r/sites/REINAWORKSPACE/SitePages/[mobiletest.aspx](https://www.microsoft365.com/hwav2/chat/conversation/SPO_N2VmMDhiMGYtZDc1NS00NmEwLWJlNWQtYzQ5NzE2MGZkN2JmLGZlMWY4OTk5LWM4MWQtNGZkMS1hZWJjLWJkZGJhY2EyMTNiMyxhYTU2NzI3Yy1kMjc3LTQ2ZjgtYmE2OC04ODFiMjQ2ZTZiOTA_01Z32EDI4ZRCVCVIA7RZHZPELML3OTW5XG)?d=w2aaa88991fa04f8e97916c5edd3b76e6&csf=1&web=2&share=IQCZiKoqoB-OT5eRbF7dO3bmAY8
This is the clue I was looking for.
You've now proved all of the following:
That means we can now rule out:
❌ Home.aspx content
❌ News web parts
❌ Quick Links web parts
❌ Homepage page corruption
❌ Homepage assignment
The fact that a completely new homepage exhibits the same behaviour is the key result.
The mobile app is not actually failing on the page itself.
Earlier you captured a URL containing:
Plain Text
_layouts/15/mobile/mblwp.aspx?...default.aspx
That's SharePoint's mobile routing layer trying to resolve the site landing page.
Since:
the common denominator is the site landing/navigation experience, not the page.
On the affected phone, don't use the SharePoint app.
Open Chrome and browse directly to:
Plain Text
https://reinagroup.sharepoint.com/sites/REINAWORKSPACE/SitePages/mobiletest.aspx
(not the shared / :u:/r/ link)
I want to know whether:
mblwp.aspx and fails again.Are all affected sites:
and are there any sites that don't exhibit the problem?
For example:
If a brand-new Team Site also fails, I'd be leaning heavily towards a SharePoint Online/mobile application issue rather than anything specific to REINAWORKSPACE.
At this point, you have already done enough testing to conclude that the issue is not with Home or mobiletest themselves. The evidence points to the way the mobile client is opening the site, not the content of the page.
Sources
it threw up an error and asked me to switch to pc view which i did and it opened
That is a very strong indicator that the problem is the mobile view itself, not the page, not permissions, and not authentication.
Your test sequence now shows:
mobiletest.aspx exists and opens in desktop mode.mblwp.aspx).The fact that switching to PC view immediately works is the key result. That means:
The content can be rendered by SharePoint, but the mobile experience cannot render or route to it correctly.
At this point I would stop investigating page content and focus on the mobile experience itself.
You've effectively ruled out:
The evidence points towards either:
Open the site in Chrome on the phone and:
If that works consistently while the normal mobile view fails, that further confirms the issue is isolated to SharePoint's mobile experience.
For your users, a temporary workaround would be:
Raise a Microsoft 365 support ticket and provide the specific evidence you've gathered:
/_layouts/15/mobile/mblwp.aspx
mobiletest.aspx) exhibits the same behaviour.That's a very strong technical case that the issue lies in SharePoint's mobile experience rather than your site configuration.
One final question: is this happening on both iPhone and Android, or have you only tested on one platform so far?
Sources
why would it happen in sharepoint app tho?
Because the SharePoint app is not just a browser wrapped in an app.
What you've discovered is actually consistent with how the SharePoint mobile app works:
When you open a page from Site Pages, the app is opening the page directly (SitePages/Home.aspx or mobiletest.aspx). That works.+1
When you open the site, the app first tries to resolve the site's landing experience and navigation. Earlier you captured it redirecting through SharePoint's mobile handler:
Plain Text
_layouts/15/mobile/mblwp.aspx?...default.aspx
The strongest evidence is:
If the page were the problem, changing to a brand-new blank page would have fixed it. It didn't.
My honest assessment is that you've narrowed this down to one of two things:
A bug in the SharePoint mobile app or SharePoint Online mobile navigation layer affecting modern Team Sites.
A site navigation configuration common across your Team Sites that the mobile client is mishandling.
The fact that:
all points away from content and towards the mobile site-navigation experience itself.
If I were raising this with Microsoft, I'd summarise it as:
"SharePoint mobile app shows a white screen when opening Team Sites. Site Pages and document libraries open normally. Direct links to pages work. Changing the homepage to a brand-new blank page does not resolve the issue. The mobile client appears to redirect through
/_layouts/15/mobile/mblwp.aspxand fails to load the site landing page."
That's actually a very strong support case because you've already eliminated most of the normal causes.
Sources
Summarize key points for Microsoft support
Here's a concise support summary you can paste directly into a Microsoft 365 support ticket:
reinagroup.sharepoint.com
Users are unable to open SharePoint Team Site homepages from the SharePoint mobile app and mobile browsers.
The site loads correctly on desktop browsers, but when opened through the SharePoint mobile app or the site's Home navigation, the page displays a white screen or fails to load.
This issue affects multiple Group-connected SharePoint sites.
Plain Text
/_layouts/15/viewlsts.aspx
Originally the site homepage was:
Plain Text
/sites/REINAWORKSPACE/SitePages/Home.aspx
A brand-new blank page (mobiletest.aspx) was created and set as the site homepage.
Desktop browsers immediately began opening the new homepage correctly, proving the homepage assignment updated successfully.
However, the SharePoint mobile app still displayed a white screen when opening the site.
This demonstrates that the issue is not related to the original Home.aspx page content.
The test page contains only minimal content and no custom web parts.
When attempting to open the site from a mobile browser, SharePoint redirects through:
Plain Text
/_layouts/15/mobile/mblwp.aspx
The resulting error references:
Plain Text
/sites/REINAWORKSPACE/default.aspx
and reports:
"The web page might be temporarily down or it may have moved permanently to a new web address."
If the browser is switched to Desktop Site / PC View, the page loads successfully.
The issue appears related to SharePoint's mobile site navigation / homepage resolution layer rather than:
Please investigate the SharePoint Online mobile experience and the routing/redirect process used when opening Team Sites from the SharePoint mobile application.
Evidence regarding the original homepage and the test homepage was verified from the site pages themselves.+1
Sources
Explain how to submit this summary to Microsoft support
As a Microsoft 365 Global Admin (or SharePoint Admin), the easiest way to submit this is through the Microsoft 365 Admin Centre.
Go to the Microsoft 365 Admin Centre:
Select:
- **Support**
- **Help & support**
In the description box enter something like:
Plain Text
SharePoint mobile app and mobile browser issue affecting multiple Team Sites.
Site homepages show a white screen when opened from the SharePoint mobile app or site Home navigation.
Direct access to Site Pages works.
Document libraries work.
OneDrive mobile works.
Desktop access works.
The problem persists after changing the homepage to a brand-new blank page.
Please see attached diagnostic summary.
When prompted, choose:
- **SharePoint Online**
- **Site access/navigation**
- **Mobile app**
Create the ticket and paste the full summary we prepared into the support request.
Go to:
Select Help & support (top-right question mark icon).
Raise the ticket against SharePoint Online.
Have these ready:
Tenant: reinagroup.sharepoint.com
Example site:
https://reinagroup.sharepoint.com/sites/REINAWORKSPACEExample affected user(s)
iPhone/Android version
SharePoint App version
Approximate date the issue started
Screenshot of the white screen
Screenshot of the mobile error referencing:
Plain Text
/_layouts/15/mobile/mblwp.aspx
The fact that a newly created test homepage (mobiletest.aspx) also exhibits the issue while opening correctly when accessed directly.
Plain Text
SharePoint Mobile App - Team Site Home Navigation Fails (White Screen) While Site Pages and Libraries Open Successfully
Based on all the testing you've done, you've already gathered far more diagnostic information than Microsoft usually receives in an initial ticket, which should help them narrow it down quickly.+1
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 79%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESK%3C/text%3E%3C/svg%3E)
i was able to resolve this by disabling the "Mobile Browser View" Site Feature
i was able to resolve this by disabling the "Mobile Browser View" Site Feature
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(134.4, 65%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDO%3C/text%3E%3C/svg%3E)
Thank you so much!! That fixed it for me also
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(147.20000000000002, 16%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESC%3C/text%3E%3C/svg%3E)
I wanted to share what we experienced and the remediation step that resolved this issue for us, in case it helps others seeing the same behaviour.
What We Experienced
Our SharePoint site loaded successfully from desktop browsers, and direct links to modern pages, document libraries, and other site content worked as expected.
However, when users accessed the site from a mobile browser, the site either appeared to hang during loading or redirected to a URL:
/_layouts/15/mobile/mblwp.aspx, which then returned a File Not Found error.
What We Tested
We tested the same site from desktop and mobile browsers and confirmed that the issue was specific to the mobile browser experience. We also tested direct links to specific site content, which continued to work successfully.
Desktop Workaround Test
As part of testing, we added mobile=0 to the affected URL to force the desktop experience. When this parameter was added, the site loaded correctly, which suggested that the issue was related to the legacy mobile rendering path rather than the site content itself.
Remediation Step
We reviewed the site features and found that the legacy Mobile Browser View feature was active. We deactivated Mobile Browser View for the affected SharePoint site and then retested mobile access.
Results
After deactivating the Mobile Browser View feature, users were no longer redirected to /_layouts/15/mobile/mblwp.aspx. The SharePoint site loaded successfully from mobile browsers and the File Not Found error was resolved.
For us, this confirmed that the issue was caused by the legacy mobile rendering experience being enabled on the site. Disabling that feature allowed the modern responsive SharePoint experience to load normally on mobile devices.
At this time, the root cause appears to be a legacy SharePoint Mobile Browser View feature that remained enabled on the site and began routing mobile browser traffic through the legacy /_layouts/15/mobile/mblwp.aspx path and because the feature had been active before the issue appeared, the most likely trigger was a Microsoft service-side change or regression in SharePoint Online around mid-August that exposed or broke compatibility with this legacy mobile rendering path.
@Martin Perkins @Hin Vo Martin, I am so glad to see you have the same problem. I don't have a solution, but I can share a similar experience. A user came to me yesterday and couldn't access one of the SharePoint sites I administer on the mobile app. Two out of my three sites work perfectly fine on the mobile. The third one, when you click on site says "Sorry, something went wrong. File not found" Other sites work perfectly. Only this one is affected. Mobile Safari and Desktop work fine. I switched the homepage for the site to a brand new page with nothing on it. Mobile Safari goes to the newly designated home page. The app just shows the same error. I'm not sure why a brand new blank homepage wouldn't display in the app, since other sites I've created show properly in the app.
I was thankful to see your thread and see that it was dated just a few days ago, because that meant I wasn't the only person with this problem and it was likely the update to the mobile app that broke my site. Having said that, I have no idea what else to try at this point, since switching home pages doesn't work.
The only thing I can think of would be to ask my IT department to provision me another site and recreate the site from scratch and see if that worked, but that would be a lot of work. I'll be monitoring this thread and hopefully someone will have a solution. Please post any solutions that you find.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(22.400000000000002, 74%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJS%3C/text%3E%3C/svg%3E)
If SharePoint mobile is stuck loading, I’d first try the app on both Wi-Fi and mobile data to rule out a network issue. Clearing the app cache (or reinstalling it) can also help. If it works in the browser but not the app, it’s likely an app/session issue rather than SharePoint itself.
same on wifi and data, cleared cahce, doesnt work in mobile chrome or safari
its the latest update, released a week ago. we had 3 people without an issue, they had old version of sharepouint (app store saying that an update was available). 2 of them updated and now have ther same issue as i do. the one that didnt update is still ok.
you have an issue with release 5.0.6
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(108.80000000000001, 98%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHV%3C/text%3E%3C/svg%3E)
Based on my research, this behavior may be related to SharePoint's mobile redirection process. For supported site types such as Team Sites, mobile requests can be routed through /_layouts/15/mobile/mblwp.aspx before the site landing page is rendered.
Reference: Overview of Mobile Pages and the Redirection System
To help me better understand and address the issue, could you confirm whether the redirect to /_layouts/15/mobile/mblwp.aspx is occurring within the SharePoint app itself or when accessing the site from a browser on the iOS device?
As a troubleshooting step, you could try accessing the affected site using a different mobile browser on the same iOS device to see if this helps. In addition, it would be helpful if you could test with a newly created Team Site and confirm whether the same issue can be reproduced there. This will help me determine whether the behavior is specific to the affected site or related to the SharePoint mobile loading experience.
I look forward to your update. If you have any additional questions or concerns, please feel free to reach out. I would be happy to assist further.
this has only just happened. been working fine for 2 years. not changed anything on our site. what has changed on your end?
I understand your concern. At this time, I have not found any indication of a known service change or documented issue that would explain this behavior yet. Since the site has been functioning correctly for approximately two years and no recent changes have been made to the site configuration, I agree that this makes the situation unexpected.
However, based on the symptoms observed so far, the issue does not appear to be related to the homepage content itself, as Site Pages, document libraries, and direct page URLs continue to load successfully. The behavior seems to occur specifically during the mobile site loading process.
You can try following the troubleshooting steps I provided and let me know the results. This will help me better determine whether the issue is specific to the affected site or related to the SharePoint mobile experience.
Best regards,
copy and pasting the link into safari opens the sparepoint app on my phone. then hangs
none of what you written in yellow makes sense to me
im not a programmer
we have several sites n our sharepoint server. its only that site seems to have the issue.from the mobile app, if i select "open in safari" it trys to open but ends in a "this site cant be reached" might be temp down or moved permenantly to a new web address. message.
Based on what you've described, the issue appears to correlate with the SharePoint mobile app update to version 5.0.6. The fact that the site was working normally before the update, and that users only began experiencing the issue after upgrading, while a user who has not yet updated remains unaffected, suggests that the behavior may be related to a change in how the latest mobile client handles the mobile rendering experience for this particular Team Site.
Although I cannot yet confirm this as a product or version-specific issue, the information you've provided significantly narrows the scope of the investigation and indicates that the problem may be tied to how version 5.0.6 processes this site's mobile loading experience.
To resolve this, Microsoft’s support team will need to step in. A Technical Support Engineer can perform a deeper analysis, review backend diagnostics, validate the site's configuration, and determine whether the behavior is caused by a service-side issue or an application regression. If necessary, the case can be escalated to the appropriate product team for additional investigation.
Reference: Get support - Microsoft 365 admin | Microsoft Learn
Note: To create a support ticket, you need to have Microsoft 365 admin privileges and if you aren’t admin of your organization, please contact the admin of creating a new ticket.
As a Community Moderator, I also want to clarify that my access to internal product diagnostics and engineering investigations is limited. I am unable to directly engage the engineering team or perform backend analysis on your behalf. My role is to help guide users toward the most appropriate troubleshooting steps, resources, and support channels.
Currently, I would recommend engaging Microsoft Support directly, as they are best equipped to investigate and resolve issues that may be related to the latest SharePoint mobile app release or service-specific behavior.
Thank you for your patience and understanding.