Adding Power Automate flow to Power Apps stopped working

[lmheimendinger]

I went to a Power Apps to edit it and the Run() for one of my flows showed an error (unexpected character).  So I thought it would be easy to delete the command and re-add the flow call.  When I chose Power Automate on the Action menu, my instant flows show up as expected.  To my surprise, when I click on ANY ONE of them, the only thing that happens is a status pop-up appears to the right showing some flow details.  I also tried manually entering the flowname+Run() but that doesn't work at all.

It gets worse  Here are things I have tried:

1. Itried differeent browsers along with private sessions.
2. I tried on different computers.
3. I tried on different apps, including an new app with only a button and a new flow that only initialized a variable.
4.  tried on another Office 365 tenant on another computer.

All of these gave me identical results despite differences in flows and apps.

This leads me to believe that one or more things have changed: a settingfor Power Automate or Apps has changed, but I didnt see anything in those admin centers, or the technique to add a flow to an app has changed.  I could not find anything related to that though.  Because this is happening for all apps on multiple tenants, this global thing looms large.  BTW not the registration error that I have seen posted. No errors show at all.

Hopefully someone can help.  Production changes are pendingand we are just stuck.  

[lmheimendinger · Accepted solution]

Microsoft has determined this is a perhaps global error (it may be regional or some other limits) and have replicated it.  They are waiting for a response from the engineering or development team.

This is the third transient error for Power Automate in the past month where something just stopped working.