If I open the 1Password iOS app, it shows me this screen.
As you can see, Touch ID is enabled and all I have to do is tap on the fingerprint icon to the far right. But WHY?!!!!
I can't see anything that would cause 1Password to default to master password.
This happens sometimes during web browsing sessions as well. Very weird.
1Password Version: 7.5.3
Extension Version: Not Provided
OS Version: iOS 13.5.1
Sync Type: Not Provided