Rapid Fire Lag Bug

Similar to the electrocute bug, Rapid Fire seems to be doing the exact same thing,

Will create lag when used occasional trigger with 1 "use" of the skill and then follow with a display of a second use animation but do no damage and cost no resource, will also occasionally get "stuck" on use until resource is entirely drained.

Same thing here. Happens when I try to cancel rapid fire with movement. My game completely desyncs from the server. I can't exit, can't log out, can't change zones. If I die, I can't revive (button depresses, nothing happens). Only cure seems to be killing the game.