Updated Command For Falling Sand 1.12 by anfrih

1.12 has changed quite a few commands making the originals obsolete. One of these is the summon command and there were two changes:

Renamed From FallingSand To minecraft:falling_block

Changed Tile Tag To Block Tag And It Uses The minecraft.name Format And In "Quotes"

This would change a pre 1.12 summon command from:

/summon FallingSand ~ ~ ~ {TileID:1,Time:1}

To:

/summon minecraft:falling_block ~ ~ ~ {Block:"minecraft:stone",Time:1}

You can change the block type in the quotes to whichever block you want. Here is the empty format:

/summon minecraft:falling_block ~ ~ ~ {Block:"minecraft:Insert Block Here",Time:1,Data:Insert Variant Number Here} (Data can be removed)