Set the stitch distance to a full line-width instead of 1/3.
Set the stitch distance to a full line-width instead of 1/3.

The whole x 3 thing is w.r.t. the respect of the whole polygon -- that is to say, the stiching procedure will not make polygons out of something that has a chain (or rather, loop) length of less than 3x the stitch distance given. Dividing by 3 here means that we where giving it the chance to produce polygons of the size of the stich width, which is a single line segment. Not only is that unnesecarily small, it will also prevent junctions (in a series) that _are_ more than say, half a line width apart from joining up into a polygon.(Though this shouldn't be a problem _and_ does in fact occur.) This is bad because the algorithm seems to rely on at least 'even' indexed walls to always form polygons further down the line. That said, the comment is still correct, and did in fact help me find the final piece of the puzzle a little more quickly.

meant to fix CURA-8085

Ultimaker/CuraEngine,Ultimaker/CuraEngine