Frame around characters

I have 4 Storyline characters in a layered scene. On the first layer, the charcters appear fine. But, on the 2nd layer, one character enters (animation) from the left side of the screen into an office scene. When the character enters, it has a frame (or box) drawn around it, which did not appear on the first layer. I can't seem to get rid of the frame. The character should just enter, w/o a frame around it. What could be causing this?

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