Contours not exporting to variable font

Hi, I am having trouble exporting glyphs that I made from automatically outlined strokes. The shape order is fine, I get no red flag so it shouldn’t be a problem? I get this with all glyphs using just strokes.

The round stroke caps produce different numbers of points when the stroke is very thin. So it is currently not compatible to export a variable font.

ah ok good to know, thanks for the quick reply!