Checking alignment
Check the alignment quality using the transparency cursor.
Drag the cursor to the left and to the right. If you feel that the background is moving, it means you need to keep aligning the two backgrounds.
If you still cannot align the background, after repeated zooming and alignment, this could mean that the camcorder tripod moved during your recording session. In this case, it is not possible to create SimulCam video clips. You still can compare performances but you will need to use the split screen functionality of the Analyzer module.