>WWE 2K20, a professional wrestling video game, also stopped working at midnight on 1 January 2020. Within 24 hours, the game’s developers, 2K, issued a downloadable fix.
I had heard that that was actually an ISO year issue. For example 2019-12-30 becomes 2020-12-30 if you mistakenly use IYYY-MM-DD instead of YYYY-MM-DD (which kind of makes sense IYYY shows up first in documentation).
An almost poetic irony