I hope this is an appropriate place to ask this question.
I have downloaded the OTF font Celestia Antiqua Std Regular and its corresponding Italic version.
If I install only the Regular version, I can use it in programs like Word as expected. But if I install both the Regular and Italic versions, then programs like Word use only the Italic version of the font. Note: Word believes the text to be regular/non-italic, but it displays using the Italic version of the font only.
I suspect (but am not sure) that the Italic version of the font in some way specifies that it is Regular, so is being chosen for display when it should not be.
I have tried using FontForge to change the font's Weight to Italic, and exporting as TTF, but this doesn't solve the problem (as well as Font Forge raising a lot of warnings); I don't know much about FontForge so not sure what else to try, besides, it seems like the wrong avenue to go down.
For now, I can get by with installing the Regular version of the font only, but it is not ideal as italic text is only angled, rather than properly italicised. I'd rather install both and Windows/Word/etc. use them as intended, if only this would work.
How can I convince Windows/Word to use the Regular and Italic versions of these fonts appropriately?