ZBrushCentral

Problem with brush "planar cut thin"

I´m using zbrush 4 and when i try to use this brush, he almost doesnt do anything.
I tryed to set brush intensity high, rising resolution of the figure, changing the brush depth… And the brush still do barely nothing.

Any ideas about how to solve this?

Not only the effect is close to invisible, the only thing it does is a little planar circle.

I set the z-brush with default config too and still hasn´t worked.

Those circular planar cuts are pretty dependent on the brush size.

the only thing it does is a little planar circle.

AFAIK that’s the intended behavior.