The Bug:
Entities sink or fall through snow when it accumulates while the "snowAccumulationHeight" gamerule is set to any value greater than 1.
This is problematic because as a result of this behavior occurring, entities can get stuck in blocks thus creating a noticeable inconvenience. Given the triaging/fixing of reports such as MC-252730, MC-251030, and MC-250034, I'm inclined to believe that this isn't intentional.
Steps to Reproduce:
Enter a biome where its precipitation is snow, for example, a snowy beach.
Summon a platform of blocks with some snow on top of them.
/fill ~1 ~ ~1 ~7 ~ ~7 minecraft:polished_andesite
/fill ~1 ~1 ~1 ~7 ~1 ~7 minecraft:snow[layers=4]
Place armor stands on top of each block of snow.
Set the "snowAccumulationHeight" gamerule to "8" and the weather to "rain".
/gamerule snowAccumulationHeight 8
/weather rain
Watch the armor stands closely for around a minute as the snow beneath them accumulates.
Take note as to whether or not entities sink or fall through snow when it accumulates while the "snowAccumulationHeight" gamerule is set to any value greater than 1.
Observed Behavior:
Entities sink or fall through snow.
Expected Behavior:
Entities would not sink or fall through snow.
This ticket relates to MC-252730, MC-251030, and MC-250034.