Post marked as solved
Click to stop watching this thread.
You have stopped watching this post. Click to start watching again.
Post marked as solved with 1 replies, 0 views
Finally I found the source of my problem.
I accidentally called ATTrackingManager.requestTrackingAuthorization twice. The first time I called while the app was not in an active state. It seems, if the first call is made outside active state, any other calls will no longer show the popup.