Is "Remix time" bugged?

Hey guys im curious if anyone facing this problem in combat , when i usually do my open on bosses i press “Remix time” and for some reason it usually channeled 0.1sec and sometimes 0.5sec and sometimes full channel 3sec , anyone facing this problem ?

Out of combat there is no problem with it

I think it’s all about you have to not move when you’re casting it. Tried in and out of combat, every time when I casted remix time and did nothing else, it was full cast-time.

I know m8 , and its not only me

Some channeled abilities are more sensitive than others towards things that can disrupt the process. In most cases it delays it, for some abilities like remix time it cancels the whole thing.

Knockback, getting hit by something, movement.

Will it doesnt get cancels by anything either than a Knockback it just so random , same fight same situation sometimes it fully channeled and other time no