Thank you for letting me know, this is my first time building for XR so I thought the default action map was good enough for all build types, I guess not, so the trigger works in the initial godot screen to get past it? If that’s the case we don’t actually use the trigger button anywhere, we use the grab button for the handwheels and ladders and that’s about it, I’m guessing the problem is with the grab button not beeing mapped properly? (bear with me I’m very new to this XD)
From a short search using ai gemini it seems there is no godot/grab_click setup in the mappings, only the godot/grab is set, I’m guessing that could be the problem?
I’ve added the missing godot/grab_click mapping (hopefully in the right place!) and uploaded the 2 new pico builds.

Are you able to test if that solved the problem? If not do you have an idea on which mapping could be missing/wrong? I’m using the godot xr tools demo mappings.