Problems with saving progress?

I’m using chord crush, and I’m seeing a few (possibly related?) bugs:

  1. After completing a song, the puzzle stats always say “1 attempts, avg. time N/A”. This is only a problem in youtube audio mode, in synth mode it reports bigger numbers.
  2. I keep seeing the same few songs over and over again. I think this is also only a problem in youtube audio mode, but I’m not sure.
  3. After I do the daily puzzle, leave, and then login again, I am able to redo the puzzle.