[tomsem]

I think there is some metadata in the font files that groups them into a ‘family’, not just the file name. If the metadata is not right then you may see separate fonts instead. I remember running into this with some fonts I was playing with. There might be some way to fix it, but I just removed the ones that didn’t work as I expected.

At minimum you need Regular, Bold, Italic, Bold Italic. You can have others, but I don’t know if they will ever get used.