Hello @naim ben letaief,
Thank you for reaching out to the Q&A forum!
After receiving your information, I tested this behavior in my own environment together with my colleagues (due to environment limitations, I was able to test with up to 3 members only).
During these tests, I was not able to reproduce the same behavior you described. I’ve also checked the Microsoft 365 Service Health Dashboard, and currently there are no reported incidents or advisories related to this behavior.
Therefore, if this issue is consistently occurring for all or most members in your environment, I believe your case may require deeper investigation by Microsoft’s higher technical support team, as they have access to backend diagnostic tools and tenant‑level data that are not available at the community level.
I also noticed that this thread is tagged under Business, so if you are using a work or school account, I highly recommend you contact your IT admin to raise a support ticket with Microsoft’s higher‑level technical team as soon as possible for further investigation.
- To create a Support ticket, they can go to: Microsoft 365 admin center
- When they click Help & Support in the bottom-left corner, a Support Assistance panel will appear.
- In the text box, they can type: "request an agent to contact me via email or phone" and press Enter.
- After that, please look at the bottom-left corner of the panel. They will see a blue link that says, "Contact Support"; they click on it.
- They will then have two options: Support via phone or via email. They can choose Email.

- Fill all the information in this contact support details. Please describe your situation carefully so they will have enough information to help you.
- Finally, clicking on "Contact me"
Please follow this article: Get support for Microsoft 365 for business.
After completing them, you will receive an email appointment for a meeting to review this issue professionally together.
I apologize for redirecting you to the support team. As forum moderators, I have limited access to backend systems and cannot directly investigate device-level issues.
I truly hope you’ll be assisted soon by our dedicated technical team. And if you receive any updates or insights, please feel free to reply here.
Looking forward to hearing from you!
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