iOS 11 - Is in app purchase testing using a sandbox user keeps asking to sign in for anyone else too? Forever loop?

Question

I am testing a non-consumable IAP on an iPhone 6s running iOS 11 GM. Whenever I tap my \"Buy\" button, it asks me to sign in. I tap \"Sign in with existing apple ID\" and en

Answer 1

The same thing happens for me, for three separate sandbox users which were created before iOS 11 release. (The problem seems prevalent on iOS 11, there are posts on reddit and apple forums reporting this issue)

It seems creating new fresh sandbox user is the way to go. Sandbox users created after iOS 11 release work, while those created before the release cause "Sign in/Create Apple id" alert loop.