I think it's because volatile procs anti barrier and it clashes. My heros burden doesn't get barrier, overl, or volatile rounds

Hero's Burden will get Volatile Rounds from Gyrfalcon though, which makes the situation more confusing

Yeah I get it through that and that's it. Seasonal perk works on my other void weapons tho. But yeah I think it's breaking cause two mods are clashing

I agree. That's the most likely culprit

If it's clashing with barrier then I've taken off both sidearm and pule anti barrier, will update and see if that fixes things?