Hello, I have been getting this error in different browsers right after trying to save some changes in one of our PowerApps.
I checked the Forum but not a real reason for it to happen, we have tried in different browsers, signed out, and signed back in, the problem persists.
Image 1:

Image 2:

Also, there would be nice to have a site to submit the Session ID and get more details, or just get information about the status of PowerApps at all (i.e. maintenance, up, down, etc.)
Please let me know if you have information other than what is found on this forum.
-J.