Set Sprite Color transparency not working.

I made a translucent material, applied it to my sprite, and I am attempting to fade the transparency of the sprite using a blueprint.

The event is definitely being called and the “New Color” is debugging as (r:1, g:1, b:1, a:X) where X starts off at 1 and drops to -0.0 (it stays positive until it hits 0 some reason).

During this event the sprite keeps it’s transparency and doesn’t change at all; the image still stays solid even at 0.

Bumpity bump