Falling sand - Banners, Signs, Chests, Lava or Water- Don't render until done falling

While messing around with the new Banners I was trying to get them to work as a FallingSand Entity however when I got the command working the banner would not render until it has reached the ground. I also tried it with signs, I assume the closest related block, and it would not render either until it has stopped.

To Reproduce:
Load Minecraft,

Place a [Command Block]

Put the command /summon FallingSand ~ ~5 ~

{Block:standing_banner,Time:99}

or /summon FallingSand ~ ~5 ~

{Block:standing_sign,Time:99}

,

Look above the [Command Block]

Edit: Also happens with water, lava, and skulls.