I hope the problem with the doors are fixed in the next hotfix or update. Almost everyone I play with is having the same problem , when you open or kick open a door it still shows as being closed. This is a major problem as you cannot see into or out of a room. I get killed a few times a game because of this.
I am getting this same issue ever since my friends and I started playing on our own server. They will work fine for the first game, but after a map change there seems to be a 90% chance that doors will simply stop working on my end. I can still interact with them but nothing happens. It appears to be client side as leaving and rejoining usually fixes it for me.