This looks like a bug in FlatCAM. I've also used Altium with ground planes and it was working in version Alpha 4 on Windows 7. Could you please send me your file using [this link](http://caram.cl/software/flatcam/flatcam-support/)? JP
I've uploaded the file as "7V PSU.zip", Thanks.
Just as a bit of additional info; I tried changing the polygon pour from solid to hatched, and FlatCAM gets stuck on "Creating Geomertry" while trying to open the gerber file. Hope this helps. K
I haven't looked at your file yet, but I'll do my best to check it out before I release Alpha 5.
Thanks JP. Since then I have tried it in CopperCAM without success, and in CamBam which does open it correctly. K
Hi K, It's working on the upcoming release (sometime this month). See: [7V_PSU](//res.cloudinary.com/moot/image/upload/t_d3-gallery-s1/v1402100832/:flatcam:MKbq:7v_psu.png.jpg) Thanks, JP
Great! Thanks for looking into this one. I look forward to the release...