Weird buggy block

If you put the command @e[type=falling_block] @e[type=armor_stand] into a repeating command block and power it when you build a pillar and spam sand on the sides of the pillar it will create a weird glitchy block that every entity except players go through. Also it breaks when you just tap it like it's a button. Also the sand will float and if you place a block next to it, it will transfer it's properties on the blocks placed on it