Chondrite Magitek Sawback not animated?

I'm unsure if this a bug or not, it may well just be an oversight on the art team's part. But I recently obtained the Chondrite Magitek Sawback the LV. 88 Gunbreaker's arm.

I noticed something odd about it compared to all of the other Chondrite weapons witch share it's feature of having chain saws in them, it does not animate.

The sword clearly has saw teeth in it and they are separate from the model if you look at the edge but unlike the Darknight's sword, Ninja's daggers, Paladin's blade, and Warrior's axe, there is no animation of the blades spinning when it is drawn.

This bug is a fairly minor cosmetic one so I don't expect to see anything come from this but I love playing Gunbreaker and this game and just wanted to make it known.

Yeah I noticed that too. Kinda frustrating that it was not animated like the others.