In multi monitor "extended desktop" mode the strokes are only visible on the main display. On the TV they are not visible at all, and on the other monitor they are visible but about 10cm below the cursor. Is this normal for extended mode?
I should mention that my main display has a 4k resolution, that's the reason?
Yes, StrokesPlus does not handle high DPI well, especially mixed DPI where a secondary screen doesn't have the same DPI as the primary.
Even in the new StrokesPlus.net I have had issues, though I've heard people report that it seems to work fine for them. There are so many possible configurations it's hard to test them all...especially since I don't have a 4k monitor or TV :)