He had been absent from official engagements since his wife shared her "shock" cancer diagnosis last month.
The Queen was at an event when she commented on the Princess of Wales.
It is reported to have happened at The London Clinic.
CNN analysis found up to 19 inconsistencies.
She was seen smiling and walking with husband, William.
A launch video shows Markle working in a kitchen and walking through hallways.
The pair have previously released their own digitally altered photos.
"The editing storm has undermined the existing relationship."
TMZ published photos of her in a car with her mother.