[Mudbox] Strange Mirror Y + Scrape Interaction
Whenever I enable Y-axis mirroring for my model, the underside of a part of it gets a really strange effect when using the scrape tool. 
Mudbox slows down by a lot when I use the brush, and as you can see there's some kind of strange artifact on the stroke itself (they're removed when I update the camera by moving it around and such).
The tool is supposed to have effects like this, but whenever I have mirror Y enabled (just mirror Y, too, any other axis seems to work fine) it glitches out.
It's just the underside of the part, as well. As you can see in the this image, there's a bottom and top part of each stone. Scraping the top works fine, and it's just the bottom part that has this strange effect.
Does anyone have any idea on what's causing this, and how I can prevent it?
Mudbox slows down by a lot when I use the brush, and as you can see there's some kind of strange artifact on the stroke itself (they're removed when I update the camera by moving it around and such).
The tool is supposed to have effects like this, but whenever I have mirror Y enabled (just mirror Y, too, any other axis seems to work fine) it glitches out.
It's just the underside of the part, as well. As you can see in the this image, there's a bottom and top part of each stone. Scraping the top works fine, and it's just the bottom part that has this strange effect.
Does anyone have any idea on what's causing this, and how I can prevent it?