Extremely Disruptive Cool Down Error Post Patch 3.3

I am uncertain if anyone else has experienced this bug, but it is extremely disrupting to my gameplay and has had dire consequences on my raiding.

Please view this minute long video that demonstrates the issue I am having.
(I chose Ninja because it is most visible on the mudra, however it affects all of my classes: Paladin and Astrologian)

https://youtu.be/Cy2f1Gbb4DI

Summary:

When the cool down reaches zero, and the skill is available to be used again, upon execution the countdown resets to 2-3 seconds. You can see the skill is activated visually, but gets cancelled. Upon waiting for the countdown to finish again, the skill then becomes usable as normal.

This is extremely disruptive and I hope it can be resolved quickly.

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I'm a Ninja main as well and I have been feeling this in my Mudras since patch. I will do my standard Jin-Chi-Ten and hit Mudra for Huton, but as I'm hitting Mudra the system is JUST hitting Ten and can cause it to attempt to do Raiton and cancel or start the Huton animation and cancel. This is especially problematic as I then expect it to go off and continue with my rotation only for the animation to cancel and get rabbit medium. Have a Dark Knight main in my FC saying he's having similar problems with his "Grit" ability as well. I really wish I'd see more about it.