you are playing the exe ? PC is using base stations for high tracking in that case you have to put your headset on the ground when launching the game
Yes I am using 'RoxyVR.exe'. When the game loads into the main menu, just after you pick VR mode, I can see the camera fall down under the floor. Launching the game with the headset on the floor is tricky on a quest 3, but it brings me above the floor and all the way up to Roxy's hips, but that's obviously still too low to be playing the game properly. It's like the floor collision turns off a second after the menu is loaded or something like that.