MAVlink Request Mission issue and verbose mode

Hi there !
This my first post please be indulgent :slight_smile:

I am developping a guidance system which implements an automatic start depending on a certain type of way point to trigger the guidance. This already works with ArduCopter.

Here is the problem: when I send a request mission list I get the number of way point in my mission but whenever I send a request mission message i get this message in return “WPM: REJ. CMD: Req. WP was unexpected” in QGroundControl exept when I ask for the waypoint 0, then I get a result.

I hope I am limpid enough

Otherwise, Looking at the PX4 source code, I would be very helpful if I could set the autopilot in verbose mode. If anyone can tell me how to achieve it.

Thank you