When in fullscreen mode, there is a rather annoying flashing graphical error on the bottom half of the screen.
Whenever I load up a custom map, it crashes with a MAV error when I enter the next room after the intro sequence.
In the light containment zone, I found a sideways heavy containment zone door on one of the corner rooms. I think it was the corner with the elevator to SCP-939 but I am not sure.
When you try no clipping in SCP-860-1, you are forced to the ground. When I tried looking down and flying backwards, SCP-860-1 just vanished and I couldn't find it, causing me to reload the game. (This makes it a bit annoying when testing SCP-860-1)
SCP-173 seems to be able to clip through the walls of the small testing room in the light containment zone.
Some of the checkpoints just lead to dead ends. Example, a heavy containment zone checkpoint can just lead to a containment chamber and nothing else.
SCP-939 tends to get stuck on support struts and walls. Pathfinding should be worked up on a little to prevent this.
When you click on an elevator button, it plays the same error sound when inserting a too low of a level keycard.
I have never seen MTF unit Nine Tailed Fox re-contain SCP-173 or SCP-106. This should be more common.
Also you are now forced to help out SCP-079

PS the guardian is super cute and I wish he is my pet

If you found bugs that I didn't, please respond to this topic and let us know.