Initially it looks like:

After swiping over his face using the deform move tool:

AAAAAHHH

The layer is set to normal, and so is the tool's blending mode. I didn't touch the settings and it worked perfectly earlier.
I already tried restarting Krita and my PC. Help?

melocule wrote:I didn't touch the settings and it worked perfectly earlier.
I already tried restarting Krita and my PC. Help?

Hi, I'm not expert. Is it on Windows? and which version of Krita?
In my case, on Ubuntu, the "Move_tool" brush doesn't produce artifacts.
Have you tried after resetting Krita configurations?