As in the title, I'm finding this glitch to be extremely irritating to a point that I actively avoid using my Ultimate while there may be a need for healing or any urgency.
I'm running a Nightblade using a resto staff and Veil of Blades (Though I have seen this on other Ultimates, and on my DK using melee abilities). Once I have dropped my ultimate, at a rate of around 4 out of 5 times, I find my character is unable to cast or even use the standard weapon attacks in which they seem to set stuck in an animation loop. This loop is sometimes broken by sprinting, but is an extremely dodgy fix for such a problem.
This can be linked to the instances of the DK's leap animations glitching (stuck with their wings out) and the freshly popped frozen werewolf.
This becomes even more frustrating in the context of running a dungeon and trying to embarrassingly explain that the group wiped on trash as I was glitched from healing anyone.
I'd very much like this to be looked into as this unneeded frustration should not be evident when playing a game.