This is a known bug
1. Rotate or scale clip in the Premiere Pro
2. DireckLink to SpeedGrade
3. Add Mask
Results:
The actual masking area and Bézier shape position is different.
Also Bézier shape pivot point and moving direction is different than actual masking area.
screen shot video.
Expected results:
The actual masking area and Bézier shape position must be same.
Also Bézier shape pivot point and moving direction should be worked as separately form original clip information.