Microsoft 365 login problem on latest Canary 27842

Another new - interesting observation.

If I create a Word file in Microsoft 365 Copilot, I can work in it and have access to it as long as I do it from "My OneDrive" on the network. However, if I try to save the file to the desktop or even to the Onedrive folder on my PC and then open the file from Microsoft 365, I get a connection error message 2604 and a login requirement that cannot be performed.

The problem with the pop-up message "This content is a potential security issue. Do you trust this content?" concerns files that I try to open through Microsoft 365 Copilot, and which I do not have in "My Onedrive" on the network, but are on the desktop (or in the Onedrive folder on my computer). Files outside of "My Onedrive" on the network are not classified as those that I own, which generates an access problem.

In my opinion, the problem lies with the Microsoft 365 application itself, as the same situation repeats itself on several computers that I have access to and from different users within Microsoft Family, regardless of the type of internet connection (and different network providers) or profiles.