Why do I get this purple line in 3D-viewer?

So I’m following this tutorial on youtube(the left picture) and I’m almost finished, but seems like I’ve got this purple line around the board. The board is not round on edged either. Any comment or useful tips appreciated.

It looks like the 3d viewer can’t find a valid board outline, so it drew a rectangular outline that encloses all the parts.

Check that your board outline is on the edge cuts layer and not a different layer. Also check that your board outline is fully closed (all the segment endpoints are lined up properly).

Otherwise, you can try uploading your project here for someone to look at.


Thanks, I’l try that.

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