Zombies and doors

Zombies are not banging anymore doors. Tried on normal and hard difficulty.

If I leave the door open, zombies don't come in. It seems creepers don't come in also.

I unstalled totally minecraft and installed it again (I copied my saved games before doing). Starting a brand new game to check, but problem remain the same (I did not put back my old saves yet to be sure the problem is not in them).

I think it was already the case in 1.11.1

I tried to find if someone already reported this bug, but could find only one issue saying only special zombies can now break doors in hard difficulty... but I found out they don't even bang doors in my case.

Thanks in advance for your help in this matter