This bug is a parity issue
When you place powder snow and lava/water right next to it, the powder snow doesn't break. This is not in parity with Java 1.17.
MCPE-111729
Powder Snow doesn't break when placed right next to lava/water
Resolved
Fixed
6
(Unassigned)
433407
Confirmed
Multiple
vanilla-parity
1.16.230.56 Beta, 1.16.230.54 Beta, 1.16.220.52 Beta, 1.16.220.51 Beta, 1.16.210.59 Beta, ..., 1.16.210.57 Beta, 1.16.210.56 Beta, 1.16.210.55 Beta, 1.16.210.54 Beta, 1.16.210.53 Beta
1.17.0.50 Beta
Retrieved
affects 1.16.230.56