It looks like when the MTFs, once put 173 in its box, no longer walk to the chamber, but teleport.
What happens:
- MTFs encouter SCP-173 (all of these spawned by the game, not by player console)
- MTFs put 173 in containment box
- from now on, they will simply stay in that room, to never move (if you close, but out of their sight; e.g. next room)
If players walks away a few rooms and returns, MTFs and 173 seem to have walked away with 173, however, if fastly nocliped to the start of the game, you will find the MTFs there. There is no way they could have gotten there in a matter of seconds, especially in the case they capture him on the Office Zone. It should also be noted that 173 wont be in its chamber, only the MTFs

Anyone else encountering this?

EDIT: Here is an http://pasteboard.co/ufFbP0K.png. MTFs stay there forever, and 173 + cage are missing

This belongs into the Bug reports section.

I don't even think that it's a bug. mtf and the cage of SCP-173 are kinda glitchy when moving around so i think it's supposed to be that way

Update: Added image