Ghost Outline of Movies in Storyline 360

Greetings all,

When I place movies (.mov) into a Storyline 360 project I randomly see a thin black line on one or more edges of the movie. Sometimes they exist and sometimes they don’t.

Stranger yet, at least for me, if I try to do a screen shot, the outline goes away. The attached photo had to be taken via phone.

I’m wondering if anybody else has had this experience and of course even better if they have a solution.

Any chance it has something to do with monitor size or screen resolution? It seems like when I’m building on my laptop they happen less frequently or not at all. Move to my multi-monitor set up and there they are.

I have previewed this and published to Review 360 and get the same thing. If the lines exist when I see them locally, they are seen when published. When I don’t see them, they’re not in the published version either.

Any help anybody can give this is appreciated.