Thanks for sticking with it. What you describe used to work for me, but since the upgrade to Steam VR Home I've found it a bit trickier to get it working because Steam VR Home auto-runs, and seems to take priority with the headset over other games. Anyway, glad you were able to get it working.
Did you have any thoughts on the locomotion system itself?
The touchpad detection in this early version only runs when the game first starts. If the controller's not turned on already before the game starts, the touchpad won't work even if you see the controller itself being tracked. If that's the problem, the solution is simply to make sure both controllers are turned on before running the playtest. If that doesn't help, maybe you can describe what you're experiencing in more detail and I'll see what I can come up with.
