Falling sand creates invisible blocks

The Bug:

Falling sand creates invisible blocks.

Steps to Reproduce:

• Run the following command whilst standing on a stone block.

• /summon minecraft:falling_block ~ ~-1 ~ {Time:1,Motion:[0.0,1.0,0.0],BlockState:{Name:"minecraft:stone"}}

• Take note as to whether or not falling sand creates invisible blocks.

Observed Behavior:

Falling sand creates invisible blocks.

Expected Behavior:

Falling sand would not be able to create invisible blocks.

Code Analysis:

Code analysis by Marcono1234 can be found in this comment.