Mentor theme missing from site library

Hey crew,

I have a really strange issue. I've just set up a new WordPress install and I'm trying to add the 'Mentor' design from your site library. But, for some reason, it's missing from my site library on my site. In fact, there are three themes all in the same row on your site library that aren't showing up in my site library options.

Here's your site library: https://i.imgur.com/RhDPdY6.jpg
And here's what I'm seeing in my site library: https://i.imgur.com/4hYWmh8.jpg

As you can see, Digital Creative, Mentor, and LearnEd are all missing. Any idea how to fix this? This is a brand new install with the latest GP and GP Premium plugin.

Thanks in advance,

Leigh