When I kill one of those big monsters, the corpse swarms into little robots which are inmortal and also they kill you instantly

Whattt???? What monster did you killl ? Are you using other mods ?

I'm using NEE, and Bob's enemies

It's not with one specific monster, it's with all of them

I am sorry, but it is not happening here. Maybe other mod is doing that ?

I just tried to find it, and I think it has something to do with the hovercraft mod, don't ask me why, but I think it's because of that (hovercraft provides two vehicles, nothing more, lol)

Yeah I have the same issue @MFerrari some area is properly cursed , when a big worm spawns and defender capsules keep spawning and its not being removed after a certain amount of time.

its a combination of rampant arsenal + Big monsters which is causing issues. it does not remove the event after killing the big spitter.

Is it renai transportation turrets ?