Icon QconG2 Pro max fader volume +12db?

I recently purchased Icon Qcon Pro G2 and it’s been working great.
I have one problem though and it would be great if someone could help me.

I’m using Cubase 11 / 12 Pro and I have its max fader volume set up at +12db, instead of +6db.
The problem is that when I physically push faders on my Qcon controller to max, they only go to +10db max in Cubase. It doesn’t seem to recognize my +12db preference.
If I set up Cubase max fader volume to +6db, it works fine with the controller.
My controller is set up as Mackie device, and every other function seem to be working correctly.
How do I fix this?

Thanks in advance