On the same shot, the “glow” completely disappears when the subject walks under a shadow. It is probably connected with exposure, and maybe a combination of over exposure and environmental factors.
One more observation, this has happened to me twice. both times, the day was cloudy with the sun breaking through, like right after summer rain. When the weather is like this, everything soft of looks like it has a “silver” glow to the naked eye. I don’t know if it is related to the issue, but it’s just an observation and perhaps if anyone else out there has noticed this, they can confirm similar environmental factors.