Steam Problem With Afb On Br 412 Ice 4

I turn on AFB using left MFD. It turns on successfully, but I can't set speed - it's always set to 0. Neither using the lever nor using the keyboard R/F.

 

When you press afb and then 6 boxes appear you need click on the top one for maximum speed with afb.

 

Off course, I did it. AFB turns on, but speed selector remains at 0. Yellow marker on MFD stays at 0, blue bar on HUD stays at 0.
AFB doesn't work even on Vectron! Speed selector remains at 0. Ctrl+F that confirms new speed selection on Vectron doesn't work.

 

Sorry i thought you was talking about the ice 4 the vectron it doesn't at all.