Log In option not available, forced to create a new account

The Log In option is only available on the first app launch. I put in my credentials and am greeted as a new user, even though I have a Pro subscription. When I back out of that screen, I no longer see the Log In option and either have to reinstall the app or continue to create a new account. The issue happens on mobile phone, my device is Samsung Galaxy S21. Video available upon request.