I was playing through the campaign (I believe it was the first or second mission) and once I got to the part where I need to kill a small boss in a room with a giant ice drill, it glitched out once I killed the mini boss. When he died, he disappeared but the drill kept on drilling and the game never accredited me with killing him. Just thought I’d share.
Moved to the bug report section, thanks.
Just had this happen to me on PS4.
It looked like one of the golem had also spawned inside the scenery, no not sure if this was a cause or side effect.
Got exactly the same problem in the 5 players game, the drill animation never terminate after the boss death (the ice one)