If you were to place a Shulker on a snow block or carpet block, the Shulker is placed above the block then teleports away a few seconds later.
MC-85506
Shulkers float over snow, then teleport
Resolved
Works As Intended
0
The snow and carpet take the whole block. Shulkers can only be places at block boundaries, not on top of a 1/16 high block.