Hey, really sorry about this - I'm not sure if I accidentally introduced new errors into the algorithm this year, but it does seem to be happening more than I intended. I can only really recommend starting a new pumpkin if this happens too much, the pumpkin itself might become full of hidden errors.
Viewing post in Constant errors carving
I def get more errors this year than previous years, but not so many we can't carve. But I just want to shout out how amazing the interaction design of those errors is. One gentle, non-judgemental modal box that explains it's not your fault, and you feel predisposed to read, but then if errors occur again on the same cut, you just just a little gentle apology that guides you to undo a bit further without stopping you doing stuff. Multi-billion pound software companies still haven't figured out that this is how to talk to your users.
Basically what I'm saying is thanks for another fun year already - my little one has been carving virtual pumpkins for Mayor Bones three halloweens in a row, which is to say every one she remembers!