@anon24157657 you might want to check out my reply in another thread in the forum discussing color override preservation for icons.
As @Dominik6 described, the icon component’s frame can have a unique name, but the shape within should be standardized. Something like “Shape”, “Vector”, or “Icon” like this:
@Craig_C, curious if this is a naming issue on your end, or something else? If you have a file you can share view-access to I can take a closer look.