I am exporting an interactive PDF with a movie placed on a page, and when viewing in Acrobat I'm getting a black keyline around the movie's bounding box when I enter the page. If I click anywhere else on the page, the box disappears, however this is not possible in full screen mode as the cursor/hand instead selects the next page, and besides, I don't want the user to have to click away just to view it correctly.
Please reference the image attached. The text is just there to help show the keyline/border.
I have tried using both .mov and .f4v files (.mov because it allows looping) and both end up with the same result.
I have tried not looping to no effect.
There isn't a keyline in the movie file, nor in the bounding box in InDesign.
It's as though Acrobat is saying, "Here's the media file you wanted activated upon page entry. See, I've put a black box around it so you know".
So the question is, is there some way of having media files playing upon page entry without this keyline?