The VIFF exhibit is gone, as far as I know this one never worked. Downloaded LFF museum yesterday, huge download, but so far, all the exhibits seem to be functional.
Same problem here. I got an update for MOR the other day and it says it is for VIFF. on the details page. Unfortunately, none of the experiences, inside the VIFF gallery will load, I just get dumped back to the museum.
I got it to work by changing the default controller, in Steam settings. Still a little wonky, won't let me turn with my right joystick, but otherwise seems functional.