Please, help: issue with VF style linking in MS Word

Rafał Buchner

Hi,
I'm working on a type family, which contains 2 separate VF files for the Romans and Italics, each file has a Weight axis, with Regular and Bold instances. Style linking for those instances works everywhere (Indesign, MacOS TextEdit and many moreee) with the exception of MS Word: 

In MS Word regular is linked to italic and bold. But italic is not being linked to bold italic. (In other words UI buttons "I" and "B" works separately, but not together).

I'm generating the variable fonts using fontmake. 
I feel I was trying to rename every name table entry to make it work. 
Does anybody have an idea how to help me or where in the font tables I could edit something so this fricking style linking would work properly?

Thanks in advance

Aaron Bell

Do you have a STAT table? 

Rafał Buchner

Yes, for Weight as well as for Italic, with linking

Aaron Bell

Hm. Hard to say without looking at the files themselves, but I'd suggest comparing your font data to the variable font versions of https://github.com/adobe-fonts/source-code-pro, which similarly employs a separate Roman and Italic and, at least as far as I can tell, works without issue.