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.
Is this normal? How do you think this phenomena? I am waiting for your coments.