Not sure if this is going to help anyone, but using the dual sense with a PC was not working as well as I expected. The pc I am using only has USB 3.0, I remember someone mentioning XIM Apex sometimes doesn't behave well with 3.0.
So I plugged the XIM Hub (3 port hub included with XIM APEX) to my PC, then I plugged XIM Apex to port 1 ( I tried all, no difference really) then from the back of the XIM Apex, I plugged another powered USB 3.0 USB I had around, then I plugged Dual sense, mouse and NAV to the 3.0 Hub. This worked all the time, I don't even have to plug the dual sense last. I just leave everything connected. Again just my persona results...but if you are having issues using the dual sense in your PC with the XIM Apex, you may want to use or get a 2.0 USB hub.