Sometimes the zombies die, a long time standing at the door

If you mean doors in general then it is a problem that the devs should fix haha :D Can't really do anything about it. Sometimes they stuck and sometimes not.

I think that's a failsafe for when AI pathfinding gets screwed up (it certainly seems to be). Instead of just retrying over and over again with no progress, entities are killed off to prevent the game hogging a load of CPU power needlessly and slowing everything down.

I hope the pathfinding system will be more dynamic on the next dlc :S

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=375505309

Haha yeah the zombies love to be stuck on this table. I will stresstest it again before I ship out another update :)

I dont know why, some zombies crouch looking a wall, and until they receive a shot anywhere they simply stay there xD, but i guess thats not your fault

Zombie AI is pretty dumb sometimes :) The zombies are always like this when they run into a wall, they automatically try to crouch as if there is an obstacle

oh, and i found something else, when you begin, at the left of secretary, in that fallen staircase is pretty much impossible to jump over it, is it made on purpose?

It was on purpose for the zombie AI. You can still run jump it up there.