Shortly, the app is live and working, but when I try to edit it, I have everything blank in all versions in up until 2 months prior as well, so I have no means to update the app. No solutions I found so far helped.
Things I tried:
- Different browser
- Different computer on different account
- Clearing cache and cookies
- Running in incognito / with no extensions
- Restarting browser, computer etc.
- Waiting for 2 days
- Exporting the App and importing it again under new name (both zip and msapp)
- Reverting to any version in the past 2 month (versions earlier work)
- Changing the app editor version in the editor to any available