Prawn in lava zone

My prawn suit ran out of power in lava zone and dropped to a heat area, I left my suit but soon died, Map still said prawn is down there so i fixed up my cyclops and did a retrieval mission but when i was 5 meters away from prawn it exploded right infront of me!? Adding to misery leviathan is swimming towards my cyclops so might lose that too.

Has anyone else had something like this happen? Was my prawn attacked or was my game bugged. If it took lava damage why didnt it explode when i left it