Hi,
I simulated to buy the pro version in TestFlight. When I installed the AppStore version my pro status was not reset properly.
Edit: This is how I found out, not part if the problem:
I recognized this, when I installed the App on the iPad and tried to restore the subscription: there was none.
Hello. I think the Dev said in another post that the TestFlight purchase is cached, and you may need to delete and reinstall the App Store version to reset it.