Incomplete color font layers SBIX

Hi, I’ve created an SBIX color font with a master layer containing vector outline, then 3 iColor layers underneath (512, 256, 72). In Exports, there are 3 Custom parameters [SBIX to SVG 512, SBIX to SVG256, SBIX to SVG72]. When I export the font, I receive an error “Incomplete Color Layers”. Every layer does contain a PNG at their specific heights. Each character is clipped neatly and narrowly. How do I fix the error? I am using the 3098 Glyphs version

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The painted letters are slightly different to the smooth vector, but both fit inside the bounding box and virtually on top of each other. It was the closest I could get them

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There can only be one ‘SBIX to SVG’ custom parameter per instance since OpenType-SVG does not support images of different sizes. You can add three instances to a font, each with different ‘SBIX to SVG’ parameter values.

Hi Florian, thank you for the advice. I made three instances, each with only one SBIX to SVG, tried exporting but still receive the incomplete color layer. Is there a URL/tutorial that explains deeper the requirements. I am following this tutorial: Creating an Apple color font (sbix) | Glyphs

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From what I can tell, not all glyphs have the same number of iColor layers. All glyphs should have a 512, 256, and 72 iColor layers. If that is the case, could you send your font to support @ this website?

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The ‘space’ glyph has one ‘iColor 512’ layer. That is messing things up.