Quicksilver sometimes not triggering while holding fire

[kidgrit]

I find that this is only happening when I am holding down the fire button and use the quicksilver imbued ability without letting go of the fire button. But it's inconsistent, sometimes it works and sometimes my mag just stays at the same level it was before I used the ability.

 

[kidgrit]

I was wrong about this I think - I'm starting to think it was the cooldown. My apologies