I have been working on an app with Expo which works well on the simulator and via the Expo client however after starting testing on testflight the app will sometimes crash during startup the screen goes white for a moment before going black and then crashing.
I opened the xcode debug which shows this message: https://image.ibb.co/jowXvd/Screen_Shot_2018_05_13_at_18_42_50.png
It does not happen all the time but properly 6 out of 10 times i try to open the app.
Any ideas what could cause this? I’m using firebase on startup to check if the user is authenticated, as this looks something like a url session.