Hikou won't stop firing in Naeglar Hive Sabotage

[Aughts.Hunt.In.Packs]

Sometimes, when I do Naeglar Hive Sabotage, my Hikou will start firing and won't stop. Since I run Concealed Explosives on it, this has catastrophic effects, as seen below:
https://www.youtube.com/watch?v=IcKRTLqlB80
In this video, I start typing while it's firing, which shouldn't be possible. This has even happened while selecting relic rewards in Axi Fissure Naeglar.
This has never happened with any other weapon, and any other circumstance. I don't use the Hikou anywhere else, and the way I use weapons and generally move around in Naeglar is very different from how I act in any other mission. So, Idk if it's something in Naeglar per se or something about my specific movements.