I'm working on a project and I often have track powerwindows on faces to blur them. When I render, I usually have 3 or 4 shots on which the tracking doesn't follow. If I re-render with the same settings it goes fine. Any clue on why that happens?
Sources: DNxHD 145 MF from AVID and R3D. 1080p25
Render: QT ProRes 422 HQ 1080p25