Potemkin Buster displays red hitbox

[GGelatin]

Potemkin Buster displays a red hitbox that doesn't seem to relate to anything.
I've tried seeing how it interacts with collision boxes, hurtboxes, hitstun, blockstun, guard crush and nothing worked.
Is this a bug or does it have some use that I can't think of?

[AltimorTASDK]

Throw boxes have to overlap the character's origin point (usually their midline) to connect. I plan to add an indicator for this in the next version.