Unable to map Thrustmaster TMX wheel for use in Launchbox / Bigbox front end

[vandak]

I have not been able to get my wheel to work for LaunchBox / BigBox navigation. It works fine in game play. When I go to Options > Game Controllers > Mappings and click add, I can press the button on my wheel and it correctly recognizes the button press or turn of the wheel. However, when I then try to do the same for the next row, it doesnt capture the button press. I can do one button, save, go back to Options> Game Controllers> Mappings and do the next, save and repeat (which I did and it took forever), but none of the buttons work when navigating LaunchBox or BigBox. 

Has anyone seen this before? What am I missing? 

 

LaunchBox version is 13.19
Wheel is Thrustmaster TMX Force Feedback using DirectInput
I have the latest TMX software/drivers installed. 

Thanks in advance!