Promoting a pawn in Circular Chess and then going back a move softlocks, i think

I'm on linux, and when I go to download the game it downloads 0 bytes, and when I try and launch the game, it's missing an executable. Not entirely sure how or why this happens.

So I was gonna play it, but I realized I needed to request access. So, I clicked it. And I don't know why, but I could play it as soon as I requested it. Edit: Problem: It won't show up in the library.

When promoting in the AI mode the screen pops up for you to promote, then when you click on the piece nothing happens.

Why is circular chess the only thing in vs ai