Hi Damien,
I thought we've solved this problem when I did reset camera raw, I did not see more clipping after the reset because color profile went back to default (Adobe RGB) and I did not realize that at that moment, until recently when working with other photos, so I switched back to sRGB and clipping is back and my histogram is not even touching the far right side. So, at this point I worked in about 40 photos in adobe RGB, I had couple more left to finish when I realized I was in the wrong color profile!.... other than highlight clipping, there is also a noticeable change in red tones, other colors do not seem to have a dramatic change. Here is same photo in both color profiles, in the photo of the woman in red dress, adobe RGB represents the right color of her dress.
I would appreciate any help. Thanks