Little bug I stumbled upon with Benedict.
I was soloing in The Renegade, advanced. I was turning my back to a jump-pad, surrounded by Thralls. I equipped the ult, clicked, and was somehow knock back onto the jump pad. jsut before it fired.
The bug here was that the weapon got stuck into one of the ult firing animation frame. Couldn’t do anything : no primary, no melee, nothing. Everything else was on cooldown, including the fumbled ult. I watched helplessly as the Thralls proceeded to tear poor Caldarius to pieces. After a few sec, Hawkeye went out of cooldown, and fortunately enough I could fire it and reset the stuck animation frame. Too bad it was already too late