Item frames placed on top of ice crystals pop off, while item frames on amethyst clusters stay.
Steps to Reproduce:
Run: /setblock ~ ~ ~3 ice_crystal[facing=up]
Run: /setblock ~3 ~ ~3 amethyst_cluster[facing=up]
Run: /summon item_frame ~ ~1 ~3 {Facing:1b}
Run: /summon item_frame ~3 ~1 ~3 {Facing:1b}
Wait 10 seconds
Observed Results:
The item frame on the ice crystal breaks and drops. The one on the amethyst cluster stays.
Expected Results:
Ice crystals behave like amethyst clusters, since they have the same shape and block type.
Code analysis:
In Blocks, AMETHYST_CLUSTER uses .forceSolidOn() but ICE_CRYSTAL does not. ice_crystal is also missing from the
#minecraft:blocks_motion_no_leaves tag, which lists all amethyst clusters and buds.
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