Interior and exterior letter contours cross when generating separate toolpaths for engravings.

[tpdecker]

Description:
When generating separate toolpaths for interior and exterior contours of letters, the toolpath for the interior of one letter may cross over into the exterior of another letter. This results in unwanted cuts through other parts of the design. The expected behavior is that toolpaths should remain confined to the intended letter area. This issue was observed when creating an engraving sign with multiple letters, where the interior and exterior needed separate toolpaths.

Steps to reproduce:

Create a design with multiple letters that require both interior and exterior engravings.

Generate separate toolpaths—one for the interior and one for the exterior.

Observe that interior toolpaths sometimes cross over exterior paths of other letters.

Expected result:
Each letter’s interior and exterior toolpath should be confined to that letter, preventing unwanted crossovers.