DRS-IAR green laser bug

 Ever since DICE updated the challenges, what 2 days ago? I noticed the 20 point green laser is not giving a hipfire increase on the DRS-IAR specifically. Every time I click on it , it stays the same value on the slider bar as the 10 point green laser. Is this just a UI bug? I dont think its just UI, because on testing at the fire range the 20 point laser isnt giving me any better hip fire than the 10 point one.

Can anyone else confirm this bug?

In the pictures below you can see my hipfire still remains at 54 with both lasers attached.