"Can you confirm you drew that entire diagonal with one click?" Yes, one drag click
Dev response
"Interesting. It does seem a little finicky to draw diagonal lines that way. This might not be trivial to fix. Can you file an issue for on GitHub? Many thanks in advance!
It does not happen if you use Shift+click do draw the entire line at once rather than dragging, so in the mean time you could try that. You can still also hold Ctrl to constrain the line to 45 degree angles."
https://www.reddit.com/r/Worldpainter/comments/18pjuaf/another_possibly_unintended_behavior_in_brush/
"Can you confirm you drew that entire diagonal with one click?" Yes, one drag click
Dev response "Interesting. It does seem a little finicky to draw diagonal lines that way. This might not be trivial to fix. Can you file an issue for on GitHub? Many thanks in advance!
It does not happen if you use Shift+click do draw the entire line at once rather than dragging, so in the mean time you could try that. You can still also hold Ctrl to constrain the line to 45 degree angles."