If the Stabilizer cannot find the reference point within the boundaries of the tracker box during analysis, the tracker box strays from the reference point and produces incorrect keyframes. Although you can manually correct these keyframes, it is easier to make the tracker box large enough to accommodate the movement of the reference point. Note that processing time increases as the size of the tracker box increases.

To adjust the size of the tracker box:

1. Stop the analysis by clicking the Analyze Forward button.
2. Press Backspace until you reach the last good frame before the tracker box strayed from the reference point. Adjust the size of the tracker box, so that it is large enough to accommodate the largest frame-to-frame movement of the reference point.
   NoteBackspacing deletes the keyframes as you go back. If you do not delete the keyframes, they will be overwritten when you reanalyze. Backspacing in this instance makes it easier to see the tracking path clearly.
3. Click Analyze Forward to continue the analysis.