@JeffDUnity3D any update on this? I’m experiencing something very similar. Just setting the Screen.orientation in an Awake method of a script when booting the game. Game is built with autorotation on and LandscapeLeft and LandscapeRight. I’m on 2020.3.12f1.
There’s a similar post but there’s no follow up there either UnityDefaultViewController should be used only if unity is set to autorotate
Can this issue be related somehow? Someone commented few months ago that he’s still experiencing the issue Unity Issue Tracker - [iOS] Application crashes when putting app to foreground if it's launched in forced portrait mode