hey guys

I got the following problem: I was working on my map and tested some fog, hurt trigger and add a door blocking model. Afterwards, I tested it and my zombies started sticking on the map. I got some of the spawners connected to windows, they work, and some to find flesh and these are the ones bugging. If I stay in a specific part of the map they run to one point and then against the wall or stop in the middle. Of course, I tried to remove my  testings and I didn't change anything in my zones and the first room doesn't have more than one. Any ideas?

Some prints would help 

You mean like that?