When I use Wraith's ultimate, my weapon stops firing.

[kay44]

Using quickcast or instantcast, this bug often occurs and I lose 1.5 seconds or even 2 seconds dealing absolute damage to my enemy. I hope you can fix this, this bug has already made some of my friends stop playing with this character.
I don't have a clip of when this happens, but if it happens in the future, I'll post it here in the comments.