I had a similar problems and i figured it out that the reviewer might have turned off / doesnt have internet connection (as network indicator in the app bar was not shown on the screenshots) or has network configuration issues. The way how firebase sdk mitigates these network outages when using firestore database and storage can result in this “resources stalling” kind of user experience. At least thats how we could reproduce the problem. Anyhow its because the device its tested on doesn’t have proper network connection as opposed to the hundreds of testers who did not report any problems with our application.