The 1.19.50 update broke two of my 3x3 piston elevators. The elevator platform has a single half slab in the center, with 8 stair blocks around it that form a depression for players/animals to stand in/on. Going up functions as intended, but when using either of my elevators to travel downwards, I immediately fall through the slab/stairs. In other words, instead of riding the elevator downwards as should be expected, I get an express trip to the bottom of the inner workings of my elevators. This never occurred before this update; Not even once.

Curiously, when I swapped the 3x3 slab/stairs platform for a solid block platform (Quartz block), the elevator functions as it did prior to 1.19.50. Something was definitely changed that broke the previous behavior of falling onto slabs/stairs that are being pulled downwards.

Video: https://www.youtube.com/watch?v=y3Fj-ugmceE