ZombieGlitching: Zombies can again walk threw walls, closed doors etc.

Zombie-always-hit: We had this already for few versions but it was fixed and now we have it again ... Zombies hit you without really catch you !
They beat in the air or hit you while they get hitted (while knockback).
Fortunately they no more ruining everything when they hit.

StairGlitching: I think this issue was fixed too but Im not sure - I only know this isn't new. Sometimes when you go down or up stairs you break you lags and all your shoes and trouser (mostly with all inside) are ruined.
Mostly this happens on the stairs at this small factory building (like those you can find at the factory near Solnichniy (factory), Elektro. etc.)