We tried everything. It was a tiny room with a bed, we had more than 2 minutes left & we tried the black light, the vacum & pressing X everywhere.
It already happened to me twice & it was always on a room with a bed...
Same happened to me, but I wasn't too far so it didn't piss me off.
Beat normal and hard on Hunter! f the description is anything to go by I assume Expert isn't possible playing solo. I'm playing more multiplayer, or in this case solo multiplayer than the actual game (just beat the 2nd mansion and I have yet to 100% it).