[giovannibajo1]

It’s a calendar bug. Local notifications are/can be scheduled 30 days in advance, so on Dec 2nd they can be scheduled on Jan 1st. I saw crash logs on Twitter mentioning “month 13”, so it looks like there’s an off by one bug in that calendar handling code

[stesch]

Stupid mistakes by big companies helped me fight the imposter syndrome.

[userbinator]

That makes it all the more unusual, because I have not heard of Apple devices having problems on Dec 2 before now; unless they're rewriting everything frequently, which may also explain a few of the other severe bugs they've produced recently... yet another argument for not replacing things entirely just because they're "old" --- software needs time to mature and stabilise, and have its bugs fixed. Something as simple as a date addition should've been perfected by now.