Happened to me as well. There was one case where there was only a sliver that was selectable at top of the item and then ~5 screens later, all 3 items were completely unelectable. No hover info as well. I had to navigate backward which I didn't know what that did but it took me back to a level. I have no idea what caused it. All the other hoverable things on the screen seemed to be working normally. As for other game feedback, I beat the game on my first pass through. I frequently lost my cursor during battles. Felt like my cursor should stand out more (be unique/strobing color or something). I lose it on all these types of games though so maybe on me a bit.