Webb, also:- In the OG films, the actors used retroreflective rods. Not CGI post-effects, a lot of the time they had a physical thing in their hand... That can't be 'accidentally' in the wrong place.
"In Star Wars: Episode VI – Return of the Jedi, Vader's light saber is coming out of the wrong handle — like, he's clearly holding the handle in the other hand."
Webb, also:- In the OG films, the actors used retroreflective rods. Not CGI post-effects, a lot of the time they had a physical thing in their hand... That can't be 'accidentally' in the wrong place.