Game crashes when Entering / Exiting VR

Development Platform & Builds XR Development
1

Hi,

  1. Game crashes when entering VR but only when packaged.
  2. Game crashes when exiting VR on Steam released titles.
  3. Game get stuck in background when exiting through SteamVR “close app” button.

Do you know these errors? Is there any recommendations for Dev? I found many similar queries (redit, answer hub…) but no relevant response.

Thanks
Michal

Vive, Win 10, UE4, 4.20.3