Quest 2 input works with "play" but not "Lauch"

Been developing a basic game for VR and testing using my Quest 2. It’s been working fine using the “VR preview” option under “Play”, however when i try to use “Launch” it sucessfully deploys to the headset but none of my inputs work.

I am still able to move my head, and hand tracking apears to be working. However none of the other inputs do anything. I can’t pick up objects or bring up the in-game menu (both of which work under play).

I’m relatively inexperienced with UE so it may be an obvious fix but none of my searching is turning up anything that makes any difference. Any idea what might be causing this?