Hey!
I hope this is the same as another report I got, but you may feel a bit silly if it is: turn around! Does that work?
On Vive, sometimes the world starts out front-to-back, nothing I can do about it really, though I'll implement a gradient instead of the neutral grey, 'cause the flat color may look like something went wrong.
Thanks for playing! Hope the above solves it, enjoy!
Naam