Spinning Servo?

Matek F405STD w/ FCHub. Flashed w/ Arduplane 4.04.

Trying to test the servos and when I connect power the servo just spins all the way around. If I put the servo on a tester it works fine; I have tried several different servos - same results.

I have re-flashed w/ v4.0.0, v4.0.4 and v4.0.5 - same issue. I even flashed with Inav.

Regardless of the firmware version, the moment I add power to the Flight Controller the servo just spins around. Perhaps I have a faulty Flight Controller? Whats odd is this Flight Controller was working fine on another build.

Any ideas?