Direct CTD after loading a World created in 22W15A

Whenever I try to load a world from the last snapshot I get the following error:
The game crashed whilst ticking entity
Error: java.lang.NullPointerException: Cannot invoke "dnm.a()" because "$$1" is null
Exit-Code: -1
Might be intentional and just be a problem between versions making old snapshots inccompatible but I thought I should report it nonetheless.

Crash report attached