The problem is all related to joining the team. Before you could join a team at any point during a round. Now you are put into a queue if you try to join a team after 20 seconds have passed. In deathmatch this is a big issue since rounds normally dont end thus players are stuck in the queue forever. However there was another problem as well. Most deathmatch plugins hook joinclass to know that a player is on the team ready to be spawned. This was never actually used in csgo since there is no classes, but before this patch it still fired, now it doesnt. I tested the below plugin in cssdm and it appeared to work perfectly.
https://forums.alliedmods.net/showpo...4&postcount=34