Beast signature skill bug

Karuseus

I just confirmed it three times, and for all three times, beast signature skill for acrobatic (block mid weak weak mid combo) didn't proc
The green shield mark is showing, but the heal didn't work
My beast is 3* sig level99

JZ734

Going to need a lot more info. Works fine for me.

Karuseus

Actually to be accurate
Whenever beast changes his combat style, whether freestyle or acrobatics, about half of the time his sig ability won't proc