Hello!
I have a problem with all smudge brushes when these add color and smudge at the same time. Randomly the brush starts to paint with a different color and in the next trace return to the chosen color. That make dirty paintings with strange hue variations, sometimes very strong as light yellow that suddenly have dark green leaks. Overlay and gradient are not selected in presets, this thing happens with all smudge brushes that can paint.

I hope there is an explanation for that, smudge brushes are my favorite for painting..

Kind regards

We're trying to figure out what is going on here, but haven't got a solution yet. The bug is tracked here: https://bugs.kde.org/show_bug.cgi?id=333227

Thanks! I wish the solution come soon : )