But is it the SAME camera that had no issues that now has issues? From your last post, it was two different cameras. How are you drawing a conclusion from that?
Pan/Scan is actually the feature that makes the problem happen the worst. It will drift very quickly using that.
I guess you have some sort of different firmware than me and everyone else. Upright or inverted (physically) and 0 or 180 degrees both have the same drift for me, and the issue has been widely reported from people with cameras in all different positions and settings.
As soon as someone says “bro”, I check out of the conversation, so I’m done here.