An error message appears in Ms. Outlook (We cannot render a new actionable message right now)

Have you tried creating a new mail profile to see if this helps at all?

Hi, FresTea~

Good day!

Thank you for posting to Microsoft Community. We are happy to help you.

According to your description, the issue of your concern that there's a prompted error displays on your Outlook desktop client.

For narrowing down this issue, please be kindly to check if there's a same issue under the Safe mode - Open Office apps in safe mode on a Windows PC.

If it works well under the safe mode, please give an attempt for Repair an Office application and see if it helps.

In addition, please give it a shot by creating a new profile - Create an Outlook profile and check if it can make any differences.

We're glad to help you and looking forward to your new updates.

Sincerely,

Alex | Microsoft Community Moderator.

The two answers are 100% useless. This dialog started appearing a couple of weeks ago and since it's hitting multiple people I'd point the blame at an Outlook update.

@Mike Is this happening in emails from one user or multiple users?

We're seeing this to one user from a single user and at this point it seems to only come up when an email with an attachment is opened.

This has started happening to me when I shut down the computer on both my work computer (Windows 11) and my personal computer (Windows 10). It first started on the work computer in beginning of august and a little later on my personal computer. It certainly smells a lot like an update of some sort may have caused this.

It happens when I shut down the computer without manually closing Outlook first. If I manually close Outlook then no problem. But if I shut down, it will complain that Outlook is preventing the computer from shutting down. When I click cancel to go back and see, I see this specific problem and messagebox.