<troubleshoot>
Video rejected
The most common rejection reason is a swing that isn't fully in frame — check that the setup, backswing, and follow-through all stay visible throughout, not just the moment of impact.
Low frame rate or heavy motion blur is the next most common cause, especially with the club moving fastest right before impact. Recording at 120fps or higher in slow-motion mode resolves most of these rejections.
If lighting is too dim or too backlit, pose tracking may not find enough contrast to locate joints reliably. Reshooting with the sun or main light source to the side, rather than behind the subject, usually fixes this.