hi, I recently bought  the RavenEye I use blackmagic 6k and Samyang Cine manual optics, when I use the portrait tracking after a few seconds the photographic camera starts to go crazy, losing the subject. Why? if I use the panorama selection instead it works better but if I increase the tracking speed the ronin goes crazy as for the portrait selection why?

hi, I recently bought  the RavenEye I use blackmagic 6k and Samyang Cine manual optics, when I use the portrait tracking after a few seconds the photographic camera starts to go crazy, losing the subject. Why? if I use the panorama selection instead it works better but if I increase the tracking speed the ronin goes crazy as for the portrait selection why?