Brain Surgery game glitch. Prof. Greengold got stuck outside his room.

[ArgentAbendAzure]

This was weird.
I was playing a challenge game with the Mass Contamination mutation on Brain Surgery.
Mass Contamination is crazy chaotic.
I started out playing with one other player.
During the house defense fight somehow the door to Greengold's room got opened.
I've never seen that before.
After we got the cases, and came back we went into the room and tired to go to the next scene.
But the door still said interact, and Greengold then came outside of his room.
The map couldn't advance.
The other player left. I kept playing for awhile. But it was stuck.
Has anyone seen this happen before?

[ArgentAbendAzure]

Here's a picture for proof.
Greengold outside, me and bots inside.

https://steamcommunity.com/sharedfiles/filedetails/?id=3457369088