Low Armor Crash not dispelling Zak arms wdef up

Just to clarify, armor crash is dispelling zak arm wdef up when it is used.
The problem is the visual indication isn't exactly clear as all the arms individually gotten the wdef up but only 1 icon is shown on the body.
There is no icon indication on each arms to show if they are wdef up, so the only way is to observe through your own damage line to validate.

Another thing to clarify is armor crash dispels according to the hitbox area, so not all arms are getting dispel at the same time since some are out of range.
Bishop dispel on the other hand, do not work on the same mechanics which has the benefit of dispelling all the arm from one spot.
So, the spot where bishop dispel works do not necessarily correspond to where armor crash works.