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Thank you very much. This worked fine, but one would think that 2 "back to back" photos wouldn't have any space between for bleed through.
The two pics are back to back with no gap. It's the transition that you wanted to use. Part of that transition changes the opacity of the pics as they zoom in, this change in opacity of the pic allows the more dominate track to bleed through. The opacity adjustment of the narration track simply made the bleed through black so it's not noticeable. If you changed transition to something that's not changing opacity, there would not be any bleed through.
Jeff