EasyEDA is making invalid contours. According to the gerber format specification section 4.6.1([https://www\.bosco\.co\.za/DownloadDocs/The\_Gerber\_Format\_Specification\.pdf](https://www.bosco.co.za/DownloadDocs/The_Gerber_Format_Specification.pdf)), contours must be closed. EasyEDA is making open contours. That breaks some 3rdParty gerber tools: [https://github.com/pcb2gcode/pcb2gcode/issues/577](https://github.com/pcb2gcode/pcb2gcode/issues/577)<br> <br>