It's a strange visual anomaly for sure, so kudos on good eyes to the OP and thanks for sharing!
This particular video is interesting, and I'm trying to figure out how the... if this is a shadow being cast from a person that was milling about
while filming... where exactly did this said shadow come from?
One tidbit that I had gleaned from watching this waaay too many times is this:
If you look closely at the lower left hand side of the door trim, as there appears to be a relection of some sort...
This reflection, for lack of a better term seems to change luminosity in the same time as the MJ ghost moves across the frame. It's kinda tough to
pick out at full speed but if you slow it down you will see what I mean. Whatever is moving seems to be effecting this spot on the door casing
also.
Now, the chandelier shadow that is seen on the far wall above the fireplace thing... my guess is that it is projected from the one that is visible on
the left of the hall. Peculiar, but with having no basis of room design it would be hard to tell how that would cast a shadow in such a place. Could
there be a mirror somewhere nearby that is causing such a reflection and shadow?
Just some off the wall thoughts of course.
T-