Hi
Yesterday I ran in a police station closing both doors. I knew was followed by Zeds so I closed everything. A crowler followed me somehow in the first floor I closed him in the first door on the right in the small room behind. I wasn't able to glitch out of the room even if I could see his arms^^.
I run in to the 4th room where the guns are, and I was hit several times by the Zed that was in the other room. I went in the second floor just to check, and I wasn't hit. Walked down in first floor and he hit me again twice (still he was in that room I checked it out^^) and I walked down and I wasn't hit.
So I guess he can see me even with some walls and then he hits the wall but server tells me I got hit. Of interest I find that even if I was hit about 6-7 Times I didn't start to bleed or even my clothes weren't ruined. I wasn't healthy at this time so I'm not sure if the damage gets to the character at all...