If you export/save the PSD, is that blue line baked in? Can you share the original file and the file with the blue ghost line it? Post a URL to the files using CC files or dropbox or something similar to share them.
Senior Product Manager - Customer Advocacy - Digital Imaging
The screenshots are in my thread, but I'll repeat here: The blue line you see on the image was left behind from the neural filter. Photoshop found the face and put a blue rectangle around it. I ran the smoothing filter, and when I clicked ok, the ghosting of the blue rectangle was left behind on the image. I've run face smoothing on other photos without an error, just this one left the ghosting. Very strange.