Hello guys, i`m having some troubles when i resize a 1920:1080 composition with tracking information in some nulls objects.
I need to resize to 720p and mantain the tracking points, because i`ll export a XFL file with the tracking information to flash.
i',m not sure how you are doing it now, but this may work...
duplicate your 1080 comp and add a new comp sized solid. select the nulls with the tracking data and parent them to the new solid. in the comp settings, change the comp to the new comp size (i assume 1280x720). select the solid layer and choose layer>transform>fit comp height and then delete that solid.
hopefully, the nulls' data will now be relative to the new comp size.