ZDoom

Hi, if a friendly monster gets removed while firing a projectile that uses A_Explode with the XF_NOALLIES flag, the game causes a very fatal error when the projectile calls A_Explode with XF_NOALLIES.

https://www.dropbox.com/scl/fi/nabl2z5q ... 1uafj&dl=0 Here is the crash report with a simple demo included, Summon DoomImpCrasher and let it fire on some nearby enemies.