Velocidrone fpv drone racing sim

So I've been looking at getting some of the free simulators and trials to try and practice at home racing fpv and I came across velocidrone and I can't get my devo 10 to control all 4 channels (thrust, ail,elev,rudd). Has anyone else tried this simple and gotten it to work??? Do I just need to play with the channel settings to get the left stick to be seen by my usb dingle? I have control with my right stick for ele and ail

I've just got this and have been trying to get it to work with Devo 7e using USBHID but I can only get 1 axis (AIL) to work correctly. All other axis are recognised but they only seem to go from 0 to 1 scale, however I set up the mixers I can't get them to register in the sim on the -1 to 0 part of the scale.
If I use my DSC to USB cable it works fine though. I think it must be a bug in the sim as it works ok on FPV Freerider and Velocidrone.
I know I haven't answered you question but there does seem to be an issue with the sim.