Hi, this is weird. I'm installing a commercial font that came with 12 styles. I want to install 4 of them, but when I do, in Window's "fonts" folder just one style appears, as well in Illustrator. If I try to re-install a style, the system says it is already installed. Then, I uninstall the font, but I have do do it 4 times, while the showed font changes its name. Did anybody else have this problem? This is so annoying and I didn't experiment this issue before. By the way, I'm using Windows 10. I'll be glad with any help.

Which font are you talking about?

Galaxie Copernicus, it is an Open Type font.

Contact the font seller.

This usually happens when a font creator has conflicts in how they named the fonts and it's not something you can change; the author has to correct this. This happened to me on Gotham font with only some of the fonts showing up even though I have them all installed.