Posted by moonviewing on Jul 15, 2020; 8:38pm
URL: https://forum.librecad.org/Hatch-won-t-fill-crescent-shape-tp5719245p5719254.html

Thanks for your response, Aman!
Unfortunately, I zoomed in until the program crashed, and there is no gap.
Also, I used snap-on-endpoints and snap-to-grid to draw the shape in the first place.

Luckily I found my own fix though, Previously I had been drawing half of the circle separately with the ellipse arc (axis) tool before adding the dividing line to make the crescent, but by drawing a whole circle with one use of the tool first, and then trimming off half of the circle instead of making it with the ellipse arc tool, LibreCAD seems to consider the hatch region valid.