I think the issue here is using manageSubscriptionsSheet(isPresented:) instead of manageSubscriptionsSheet(isPresented:subscriptionGroupID:). My theory is that there's some logic in StoreKit that tries to auto-detect the subscriptionGroupID that's failing in the Apple app review environment that works in all the other environments 😩 I've got an app in review now with the above change, so hopefully it fixes the problem. Otherwise it seems like falling back to the above solution is good enough to pass review (though a worse user experience).