Falling_block Entity With Specific BlockState Tag Appears Incorrectly

/summon minecraft:falling_block ~ ~1 ~ {Time:-200,BlockState:{Name:"blue_stained_glass"},NoGravity:1}(For 1.13)

Executing the command given in 1.13 will summon a falling_block entity with a "pure blue" appearance. Similarly BlockState with other sorts of stained glass do so as well.

Although the feature is able to entertain pixel painters, it is a surprising matter.