Surprising, but there you go … I don’t know much about Apple’s secrets of what gets reset on logout/login.
Make sense. Apple in complete control of the App Store and the system on the device and gives strict instructions to their staff what they will support… nor not.
Hope that works. For other apps that have acted up on my device(s) and in my IOS support diaspora, I’ve been known to delete/reinstall from Apple’s Appstore usually works.
Recommendation: only put on your IOS devices those databases that you really need. Don’t overload it.