Fence autoenable fails when yaw source is GSF

Hi guys,

I am using no compass for navigation with my fixed wing and it works great with the GSF feature!
I tried to set my fence to autoenable after takeoff but when I try to arm the plane I get failures that fence requires position.
My FC: Holybro Durandal
EK3_SRC_YAW = 8 (GSF)
EK3_SRC_YAW2 = 2 (GPS)
FENCE_AUTOENABLE = 1 (AutoEnableOnTakeoff)

What am I doing wrong?