Yeah, I found multiple glitches as well, though that one there's more amusing than the few I found; most were just things like walkable tiles that should've been solid.
The picture's the one of the more interesting ones I came across (has an end-game spoiler in a sense, though)
Basically, during the segment in which you control Paul, you can freely backtrack and examine the entire building even after Marion heads back.
Seems the creator never took that into account, so stuff like what's in the pic can happen.
All in all, the game was still fairly enjoyable though, and none of the glitches I found seemed to be game-breaking.