Only the first four controller devices are available to be selected

Trying to get the controls mapped in game. Iv'e got about 6 controllers on my computer, however, I cannot get SW Squadrons to use the correct three controllers. The Flight Stick Devices I should have in there are

1. Joystick- HOTAS Warthog
2. Throttle - HOTAS Warthog
3. MFG Crosswind V2

However, it has latched onto the vJoy Device like grim death and will not consider using anything else. Unplugging things just moves the controllers I need further from the top three devices, and break other systems I've got set up, so it's not a great option here.

Suggestions for getting this thing to let me map the right Flight Stick Devices? Right now I'm dead in the water.

Thank you,

Harry Voyager