magical_ui don't start the process with bebop 2 hardware

Hi,
I'm not understand what do magical_ui do when I launch it to calibrate my bebop 2.

I connect my bebop 2 APM with mavproxy, and when Iaunch magical_ui, the counter (before start process) run until 0, and nothing seem to do then. The magical window show the message 'get ready' but the process of calibration don't run (rotate the vehicule....like in this video https://www.youtube.com/watch?v=aYzwa4ZEIYU). As well as, I haven't any error message.

I tried to upload the parameters right of the bebop 2 on the APM, but this don't change the problem.

On the other hand, I notice when I use "param load bebop2.parm" (with bebop2.parm is a file which include 31 parameters), then the command "param show" show me the 819 parameters from filename.parm.
Normaly, "param show" should to show me the previously parameters upload therefore 31 parameters, are you agreed ?

Start by reproducing the report with a Bebop 2 APM connected through MAVProxy, then launch magical_ui and observe the countdown, “get ready” message, and missing calibration motion. Separately check the reported `param load bebop2.parm` and `param show` behavior; done means identifying the cause of the calibration process not starting and clarifying whether the parameter output is expected.

Written by the indexing model from the issue text.