The default custom form application generated by PowerApps shows errors for almost every column:
Automatically created SP List form
The SP list is also newly created and contains just one single item.
Error messages are "The function 'Choices' has some invalid arguments." and "Invalid argument type (Text). Expecting a Table value instead." The published application doesn't work, it doesn't read values from the SP List.
I have tried turning off options in App settings - Advanced settings, refreshing, removing and adding the Data Source again, removing the SP list and recreating it again, deleting the whole PowerApp and regenerating it again from SharePoint, etc. 3rd party cookies are not blocked, no adblocking extension installed.
If I create an app in Sharepoint (not a custom form), that also has the same problem.
The issue started today. 3.18111.17
Any ideas what could be wrong?

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