When changing from the original origins mod version 1.20.2-1.11.2 to this mod version 1.12.0+1.21.11 items in the shulk inventory are carried over but with none of the NBT data, so for example a sharpness V sword will just become a sword with no enchantments or a shulker filled with items will become just a shulker.
When changing from the original origins mod version 1.20.2-1.11.2 to this mod version 1.12.0+1.21.11 items in the shulk inventory are carried over but with none of the NBT data, so for example a sharpness V sword will just become a sword with no enchantments or a shulker filled with items will become just a shulker.