Hi everyone! Sorry to release an update so soon after the previous one. I noticed that sometimes upon losing a life, the variable that records whether or not the player has beat all 50 levels consecutively gets removed! Hopefully no one has got to that achievement yet. But if you have, I deeply apologize!
That being said, I'm fairly certain there aren't any other issues of that magnitude.
EDIT: I can safely confirm there are no more issues with the achievements. Have a good day, everybody!