When you summon an armor stand with a passenger, a falling block, and you destroy the armorstand, the block falss. If you summon them on the same spot again, the second block falls on top of it. The lowest block then turns into a ghost block.
Command to reproduce:
/summon minecraft:armor_stand 14 4 12 {Passengers:[{id:"falling_block",BlockState:{Name:"sand"},Time:1}]}Attachments
Comments 7
This issue was present in 1.18.1, but no longer occurs in versions above or equal to 22w03a. With that being said, this issue has been fixed in 22w03a. To reinforce my claims here, I've attached two screenshots demonstrating the difference in behavior between these two versions.
Unable to reproduce in 1.16.2 pre-release 1