I don't know if this was MayoHole's fault, or SteamVR's, or what, but I launched it for the first time, and after a moment, my whole system froze hard. I had to reboot. When I did, I wasn't getting video output on any device. Something borked so hard, it killed my video drivers semi-permanently. D: (It's recovered now, I had to do the "hold the power button with the PC unplugged to discharge the capacitors" trick -- dunno why that helps, but it's one of the most useful things I learned working in IT.)
I honestly don't think this was something in your game, cuz VR likes to freeze randomly on me anyway, but if it kept a log that I can send, tell me where it is and I can do that.