If the buttons aren't being clicked for you, it's because the input is being taken from the center of the cursor instead of the cursor's tip.
Change the cursor in the menu to resolve it.
Welp, the game froze in the tutorial. I have the pop-up to end my turn, but I haven't played any cards yet, so I can't even end my turn, so I can't close the pop-up, meaning I can't play. lol
Thanks for the helpful recommendation! It should work right with a plain or custom cursor, but we'll take a closer look at it just in case!