I have the same issue, the game just freezes.
Looks like it's trying to load a cutscene or something, because the nightvision and camcorder are put away.
Tried it twice and it happened in exactly the same situation when I try to open the chest after I unlocked it. I will upload a video later, so you can see the problem there.
Aside from that, really awesome game. The jumpscares really got be, although I play a lot of horror games. Looking forward to the actual release version of the game :)