Also getting random crashes with EmitterInstData.NDCSpawnCounts.Num() == InstanceData->NDCElementCountAtSpawn , which on my reasearch should have been fixed with https://github.com/EpicGames/UnrealEngine/commit/d66478f5023738afcb71b0b6af61032d42705d03/ according to this( Hitting check(EmitterInstData.NDCSpawnCounts.Num() == InstanceData->NDCElementCountAtSpawn) ) post, but apparently has not been.