First, try to uninstall and reinstall the Microsoft Authenticator app on your device.
If that doesn’t work, try to clear the cache and data of the Microsoft Authenticator app. You can do this by going to Settings > Apps > Microsoft Authenticator > Storage > Clear Cache and Clear Data.
If the issue persists, try to reset your Microsoft Authenticator app. You can do this by going to Settings > Accounts > Microsoft Account > Security > More security options > Identity verification apps > Microsoft Authenticator > Remove. After removing the app, you can add it again by following the instructions on the screen.
If none of the above steps work, you can try to verify your identity using a different method. Check if you have the option to choose to receive a verification code via text message or email instead of using the Microsoft Authenticator app.
Or disable MSA for a test.
