Posted by dellus on May 03, 2020; 11:40am
URL: https://forum.librecad.org/Solid-Hatch-issue-tp5718813p5718814.html

Solid hatch works with a different math model internally, and is not as reliable as the normal hatch.
Avoid to hatch a looped shape, instead break it up as shown here, with the joining line double, in reality of course lying upon the other. If the seam lines are a problem, you can put the shape on an extra auxiliary layer and switch that unvisible later.
Also hatch the triangle in an extra step.