I think that’s intentional. The big dripleaf can be locked with a redstone signal. The sculk sensor detects the item drop and emits a redstone pulse wich activates the dripleaf; when the redstone signal of the sculk sensor ends, the dripleaf starts tilting again, making the sculk sensor activates, repeating the cicle until the item despawn.
I had the same problem trying to upgrade from 1.21.11 to 26.2. I fixed it deleting the “dimensions” and “players” folders of the world and it worked. Be sure you have a backup of your world before you try this solution. Hope it helps.
Hector Gomez
I think that’s intentional. The big dripleaf can be locked with a redstone signal. The sculk sensor detects the item drop and emits a redstone pulse wich activates the dripleaf; when the redstone signal of the sculk sensor ends, the dripleaf starts tilting again, making the sculk sensor activates, repeating the cicle until the item despawn.