Observed Result: When loading a 1.19.50 world in 1.19.73, Minecraft crashes making the world unplayable.

Expected Result: Should not crash in 1.19.73

A humble request to fix this because I cannot run my 3 year old Minecraft world anymore

The world contains: experimental gameplay: upcoming creator features and spectator mode. And command blocks formatted with new execute commands which only worked with upcoming creator feature in 1.19.50.