This clip is only 1 second long. One can see the frame jump at about frame 26 of 44 frames.
This clip was shot in 3840x2160 30fps. Same thing happens at 1920x1080 at various frame rates. My SD card is a Scandisk Extreme Plus, 32G, V30, Number 3. Most noticeable when panning.
Biggest bug that I have seen so far with the Mavic.