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# Tracking Difficult Shots and Correcting Errors

If the tracker box strays from the reference point that it is supposed to be tracking, incorrect shift keyframes result. If such an error occurs, you can stop the analysis, correct it, and restart it at any frame.

This section covers the different strategies you can use to track difficult shots. After trying any of the strategies, you will need to redo the analysis. Click Analyse to generate new keyframes based on the updated information you provide.

#### Topics in this section

- Resetting the Shift Data
- Adjusting the Size of the Tracker Box
- Positioning the Tracker Box Manually
- Locking Keyframes in Place
- Changing the Reference Point
- Finding the Best Tolerance Value
- Analysing Backward
- Tracking Manually
- Analysing One Frame at a Time
- Editing the Stabilizer Channels on the Image
- Tracking a Degraded Copy of the Clip