1Password 7 iOS Stuck but 1Password 8 iOS is OK

I haven't been able to use 1Password 7 for iOS. It's stuck at Decrypting... when I try to type in my Master Password. Duo Login doesn't work either but it (1Password 8 for iOS) works fine. It's an old problem, I didn't pay attention to it. I mainly use 1Password 8.

I wanted to see 1Password 7 to compare some older features now missing from 1Password 8.

In addition to 1Password 7 supporting Dropbox and/or Local vaults. Has there been any changes to Duo Mobile to stop 1Password 7 from working?

Reinstalling the App doesn't Reset. I should have gone back to entering my Account info.

iOS 18.3.1 1Password 7. 1Password Business Account. 

Tried it on my iPadOS 18.3.1 iPad mini 5 and it's working (New Setup) but not on my iPhone SE2 (2020) iOS 18.3.1.