Some Fonts Missing on Windows

I don't know the specific cause of the conflict, but I strongly suspect the font manager built into CorelDRAW is the culprit. And this has been a problem going back several years. If I have CorelDRAW and Adobe Illustrator running simultaneously I'll see certain styles of some type families disappear from the font menu in Illustrator. When both applications are closed and then Illustator is re-launched the missing fonts become visible again in the font menu. Basically you just can't have both applications running at the same time without losing access to certain fonts.

Even CorelDRAW on its own has some serious problems handling fonts. For example, typefaces from the Google Fonts web site are growing increasingly popular and commonly used. The downloaded font files work fine in Adobe Illustrator. But many of them will glitch-out change into default Arial when attempting to apply the fonts to selected text objects. There are other examples. Overall Corel's Font Manager is just not very stable and can affect other applications when it is running.