I was trying to paint either horizontal or vertical lines.
When the Preview box is checked, and I was sliding the Spacing close to 0 for a denser set of lines, the slider uncontrollably jumped to 0, and the filter never returns from processing. I had to kill the program using Task Manager.
1. I am sure that Windows 10 and perhaps the graphic cards are part of the culprit, because of CPU, time and memory management.
2. Can you automatically turn off the Preview when the sliders of any filter are being touched, since there is always a problem when that situation occurs?
3. When any setting causes a loop like this, can it be terminated if you detect no progress in moving the brush or making no changes to the canvas for extended processing times?
Otherwise, do you have a better solution to the issues this presents?