In the meantime, you can try sitting (or standing) in your stationary boundary, then restarting your Quest. I think the player position is set on power-on, and the menu is at a set place in the world.
The fix I'm going to implement is bringing the menu to the player onready
It worked with roomscale. Surprised there's a difference. Just found out you need to call loading_screen.set_camera(), because it doesn't find it itself.
Interesting, I'm also surprised there is a difference. This is the first VR game that I've distributed for other people play, thanks for being patient with me!