Dear
Good day!
Thank you for posting to Microsoft Community. We are glad to assist!
Based on your description regarding "Download Errors". My sincerest apologies for the inconvenience this might be causing you. Kindly note that there is an incident with ID EX764050 which might be related to this behavior.
Title: Users may be intermittently unable to download attachments or view embedded images in Outlook on the web
User impact: Users may be intermittently unable to download attachments or view embedded images in Outlook on the web.
More info: Users may see the following error message when an attachment fails to download: “Error downloading the file content.” We’re validating whether this problem also intermittently impacts Outlook mobile.
As a potential workaround, downloading attachments and embedded image viewing may succeed after an affected user signs-out and then signs-in again to Outlook on the web, if appropriate.
Additionally, users can download attachments and view embedded images consistently through the Outlook desktop client, if available.
Current status: Development of the fix continues and once complete, we'll deploy it to our internal testing environment and validate that it resolves this issue without further complications.
Scope of impact: Users attempting to download attachments and viewing embedded images in Outlook on the web may be intermittently impacted.
Root cause: A recent update, intended to improve the reliability of Outlook on the web, contains a code configuration issue that's causing long running sessions, preventing attachment downloads and embedded image viewing.
For affected customers to easily identify the information here, you may subscribe to this thread or refer to SHD for updated information. I will also post back here once the issue is resolved on SHD. Thank you so much for your precious time. Stay safe and healthy. Have a nice day!
Best regards,
Inema |Community Moderator