Bounty assassin targets getting through the map

[Lourtz]

When i'm using limbo and i use stasis + cataclysm +  constantly slamming with my meleeon the assassination target of cetus bounties, every single time they fall through the map and make me fail the bountie. Please help because this is so annoying

[Cyaminthe]

I've experienced a similar thing, but instead of falling through the map, the target flew through the sky's ceiling (due to stepping on a geyser) and respawned somewhere below the gate to Cetus.