Approved BDX files in new repository does not come through to workflow

Microsoft Advise in these cases has been followed:

https://learn.microsoft.com/en-us/power-automate/triggers-troubleshoot

Specifically these steps:

Test the flow manually.
Remove, and then re-add the trigger.
Switch the connection.
Turn off, and then turn on the flow.
Export, and then import the flow.
Create a copy of the flow.

If the trigger uses special conditions, like when an email arrives in a specific folder, remove the folder, and then add it again.