When testing the same warning comes up (sign in failed network error) for the apple and demo sign in I created. The google one works fine. I am confused because when I test in Xcode on multiple devices it works perfect. The tester has got the same error repeatedly? Most recently as a fix have updated the production backend. Does anyone have any insight why the xcode testing works for me but not the tester (I understand they are on a live device- I have even connected my phone and tested on that).