I don't know what else to put here but
im on a mac
not sure if that has anything to do with it tho
i figured it out
your font files have to be placed correctly inside of your games folder
or it might not load correctly (in my case it didn't load at all)
Can you elaborate more? My Custom fonts are not showing up as well. Where should the font folder be?
When I select "Export All resources in the project" the custom font does not show up but then I select "Export selected scenes and its dependencies" and select all scenes, the custom font shows up. Weird.