"[PSA] Gym overlay bug cause - app switching"

#PokemonGO: Hello,As reported many times here before, there's a bug in the game which overlays your raid screen with the gym UI, requiring a restart to get rid of it.However, so far I haven't seen anyone mention what triggers it, or how to prevent it, which I think I found out - you're going to get the gym overlay on your raid screen (when your raid starts), if you switch out (to another app) and then back into the game at any point while you're in the raid lobby screen.Tested it on several raids for a few days now, and it seems to be the cause.tldr: don't switch out of PoGo app while in the raid lobby via /r/TheSilphRoad https://ift.tt/2ShCYoZ