Hello Deng's. Now and then I play Doom/Heretic/Hexen games, I just love Doomsday, yesterday I encountered this strange bug with a friend.
1.15.8 (Windows 64bit)
Steps to reproduce
In a Hexen multiplayer session (tested in coop only), meet any afrit (black gargoyle that spits fireballs at you) creature.
(Best is to choose mage class and set difficulcy level to highest or second highest, the afrit spawns in first map at the beginning just in front of you).
Afrit flies around and attacks player.
Afrit gets stuck at the location where encountered and is invulnerable and non-clipable (you can't walk through it). A second copy flies around and attacks player. The copy can be killed normally. This behavior works only in multiplayer (even with just 1 player), in singleplayer everything is fine. This breaks several maps where the afrit spawns in the middle of corridors.
Offtopic: Is it possible to set no damage player vs. player when in coop mode? It hurts when you fight hordes of creatures and your friend trying to help delivers a fatal blow to you