bugs in the magma and sand blocks of the soul.

mojang the blocks of Magma and Sand of souls are with bugs they are not merging.
I tried to make an elevator with the blocks but the buoys will not go up and down, but when you place them in the sea or the river it fuses the blocks perfectly. But I do not want it to merge only in the sea or in the river it is in the elevator this bug is in version 1.16.0.58