Missing Font

Purchased font family doesn't display all fonts.

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Hello guys

Would you be so kind, and have a look into that font collection please, and help me figure out how to get it to work?

I bought tyepface call; "summit", from http://lisidesign.com/font/summit

"Summit contains 10 styles available in 5 weights. The styles One, Two and Three for both Solid and Inline versions
(as seen above) are designed to be used in conjunction with one another. This layering system offers an incredible
array of combinations and effects."

For some reason the 5 weights display just fine, but their respective styles won't list. Only fraction of it.
I did talk to the author, and I was informed that he is aware of the issue happening to PC users. But yet to
find way to fix it.

Here is the font in question: