The reason why it jumps in transitions is because when you add 2 clips to the timeline and add a transition…
Mercali likely defines it’s analysis of the motion based on the explicitly exposed frames of the clip in the sequence, not the handle frames implicitly exposed in the transition frames.
So if you nest the individual clip and trim it out in the nest to include the handle frames which will be used in the motion analysis, mercali will smooth the whole event….including the transistion frames.
Then on the main timeline when you add the transition, you will be adding it to frames that have already been smoothed.
It does not solve your problem with batching, but it does help you understand the behavior of the plug-in.
As far as the jumps, I don’t know if it’s a Mercali code issue or a limitation of the PPro API to third party development…..but that’s what’s causing it…and that’s how you get around it…
hope that helps.
Alex