Hello, for a few versions now, anchor propagation is broken, meaning: anchors inside components aren’t recognised in their composites. When decomposing the component, the anchors don’t appear.
An example, glyph six:
I have the six as a component in nine (don’t spank me). When I use nine elsewhere, the _center anchor isn’t recognised:
Furthermore, decomposing the component six in my glyph nine doesn’t produce the anchor:
This is frightfully annoying and has been driving me various species of nuts, especially since this worked in earlier Glyphs versions.