Color font not working from Mac to Windows

Hi, I made a color font on Mac using the Illustrator version of Fontself. It works great on Macs using MS Word. But when someone installs the font on PC and tries to use it, the characters are defaulting to black. What might I have done wrong? I can’t imagine the Mac version of Word has color font support but the PC version doesn’t. Microsoft seems to always upgrade their PC versions before they add support for Mac versions.

I suspect there’s a bug in this software, rather than an issue with your process. I found this forum by digging into the metadata for a different non-working color font (from the Oath Developer Kit, if that matters) after trying and failing to get the font to render correctly in Windows.