As you can see, the digital PTV was lower right, on the sky.
Sometime during the morning hours, it shifted to top left. I also noticed this from day to night.
Looks more related to ICR enabling/disabling.I've recorded this image for the last 5 hours. The move is also captured on the SD Card recording.
other settings
this is the full preview image, i did enabled this nightmode settings. (but the change did not happen her)
digital PTZ setup:
I did not define any preset points.