RF9 + Ardupilot + quadplane

Hi,

Been writing master thesis and want to make few test flights with twin motor tailsitter specifically.

My setup:
RF9 + newest MP + tridge CatTailsitter_EA.RFX + CatTailsitter.parm

What I do:
Open rf, import model, select model. Graphic settings are as recommended in ardupilot SITL guide.
in MP: select simulation, quadplane and then click on plane.
RF9 confirms linked. Then config tab, load from file, load .parm file. At this point I get few notifications, that few settings are read-only. Then click write, success.

I reset model in rf, as instructions say.
Then in MP, plan mission. 1 wp at 0 coords, VTOL_TAKEOFF 10 meters. Then DO_VTOL_TRANSITION(or whatever it’s called) and then fly to wp. Write WP’s.
Then in action tab arm and AUTO mode.

In simulator nothing happens. In mission planner it shows aircraft is not climbing, current consumption 20-50A, and moving on the ground few meters.

Any clues, what is wrong? I spent whole day for this and can’t figure it out.

After a night I got a random idea. I checked and now SITL works fine.

So the correct algorythm is:
Open rf, import model, select model. Graphic settings are as recommended in ardupilot SITL guide.
in MP: select simulation, FLIGHTAXIS and then click ON PLANE.