<!-- --------Before Creating a New Issue----------- * Limit report to a single issue. * Search the issue tracker to verify the issue has not already been reported. * Complete all instructions between `template comment markers <>. * Keep report contents limited to the necessary information required to fix the issue. * When creating an issue against the stable version of KiCad, make sure the latest available stable version is installed as issues may have already been resolved in later stable versions. --> # Description <!-- What is the current behavior and what is the expected behavior? --> <!-- If the issue is visual/graphical, please attach screenshots of the problem. --> <!-- Add the issue details below this line and before the "Steps to reproduce" heading. --> See the attached project. This has some filled polygons that were created from a group of arcs and lines (right click -> Create from Selection -> Create Polygon from Selection). The exported gerbers have some pretty nasty artifacts:  These are confirmed in KiCad, gerbv, and JLC's online gerber viewer. [pd2530-rearpanel.zip](/uploads/fd7edd860ec096af12a5100fa3283235/pd2530-rearpanel.zip) The gerbers as exported can be found under `production` in the .zip. # Steps to reproduce <!-- If there are multiple steps to reproduce it or it is a visual issue, then providing a screen recording as an attachment to this report is recommended. --> <!-- If this issue is specific to a project, please attach the necessary files to this issue. --> <!-- Add the steps to reproduce using the numbers below --> <!-- Add new step numbers before the "KiCad Version" heading. --> 1. Export gerbers from the attached project # KiCad Version <!-- Copy version information (from main menu Help->About KiCad ->Copy Version Info) and paste it between the triple backticks below to preserve the formatting. --> ``` Application: KiCad arm64 on arm64 Version: 7.99.0-573-gdd8b52af93, release build Libraries: wxWidgets 3.2.2 FreeType 2.12.1 HarfBuzz 5.3.1 FontConfig 2.14.0 libcurl/7.86.0 (SecureTransport) LibreSSL/3.3.6 zlib/1.2.11 nghttp2/1.47.0 Platform: macOS Ventura Version 13.2.1 (Build 22D68), 64 bit, Little endian, wxMac Build Info: Date: Mar 23 2023 01:20:20 wxWidgets: 3.2.2 (wchar_t,wx containers) Boost: 1.80.0 OCC: 7.6.3 Curl: 7.77.0 ngspice: 38 Compiler: Clang 13.0.0 with C++ ABI 1002 Build settings: ```