Starting packaged build wont play audio until mouse click in the game window

When I package my game and run it, the window that pops up where the game is running in, does not have focus and thus does not have audio until I move the cursor in the window and click in it.

This is a VR game with “Start in VR” enabled. There are no splash screen or intro movies as the game is intended to go straight to the game. Everything works after the mouse-click inside the window but a user should not need to do that when launching e.g. the game through Steam.

Any help in resolving this is welcome and much appreciated.