I believe that was it, glitch-wise. I did unpack the game, and it had worked fine before oer multiple saves. I have started the game over, and thankfully it's easy to get back where I was since I know how to solve the puzzles and I know where everything is.
Also, I'm really enjoying the game so far! The music's soothing, the art's nice, and there's so much to remember that I feel challenged, despite the simplicity of the puzzles. So many things to do, all the time! I'm glad this was in the Racial Justice bundle, or I'd have never heard of this little gem.