The "plane-3d" model of the SITL seems to have no yaw stabilization

Hi!,
I am trying the LUA script aerobatics SITL simulation on Mission Planner with the “plane-3d” model and the plane “stable” version.
It almost works well but its yaw stabilization seems not working even if I set the YAW_ENABLE=1. When I fly the model with 90 degrees bank angle, its tail goes extreemly down. Thus yaw angle becomes very big.
You can see this in the video below in which four poins roll, knife edge and figure M tricks are conducted with tail down. Is this normal? How do you think this phenomena? I am waiting for your coments.
LUA scripted aerobatics SITL smulation