Recently after the last l4d2 update, my Linux l4d2 server has been behaving oddly.
Many times (not all) when I get near and end safe'room sometimes the horde respawns inside the safe'room.
Another one is when approaching an final and if someone is dead. That person wont respawn in a closet, unless you wait for an horde to respawn first.
My server is running SM snapshot HG3862 and meta snapshot 1.9.3 HG821.
I use these plugins here, with the required files at the first page:
https://forums.alliedmods.net/showthread.php?t=133475
http://forums.alliedmods.net/showthread.php?t=83950
Linear Mode
