I am not receiving parameters from my autopilot ardupilot 3.6-dev.
The parameters bar shows 0% and 0/?
QGC can read the parameters successfully though. tried with APM Planner 2.0.18 has the same problem.
I can't reproduce your issue - just connected to a new build arduCopter 3.6-dev SITL with the current master of APM Planner. All parameters were fetched without any problem. System: Kubuntu 16.04; Qt 5.6.2