I have 3 axes gimbal, and I use control just on pan and tilt axes while the roll axes is always horizontal, every thing was OK until the latest update (beta version 2.70_8), when I send command to gimbal to use mode MODE_ANGLE and stabilize on roll and stay on 0 degrees in the eular space it starts rotating and doesn't stop at all, when I used the new MODE_ANGLE_SHORTEST control mode it just goes to the 0 degrees relative to frame without stabilize.
The other two axes work properly using the SBGC_CONTROL_MODE_SPEED, I didn't try the MODE_ANGLE on those axes yet.