I have a flow that's been working great for my team for over 2 years. Now all of a sudden, several people are having issues with it. The trigger is SharePoint: For a selected file. It has an email input where they put in people's names who will receive an approval email. It should work as a people picker, but now for these users, it says "Access token validation failure. Invalid audience."

I have searched the internet for solutions. Things I have tried:
- Rebuilding the flow (as is and also trying a similar Microsoft template)
- Building a very basic flow that includes a people picker
- Had them sign into https://make.powerautomate.com and look for broken connectors.
- Had them try it in both Edge and Chrome
Nothing works. I also tried posting on our corporate Yammer and our Microsoft team has not been any help either.
The flow is still working for several people though, and works for me in Edge, but I do get that same access token error myself in Chrome. Any ideas how I can fix this? Thank you!