I assume that this is coming off your timeline and going straight to MXF.
so the title in question is a CG title or Photohsop file? or some kind of graphic with alpha.
Can you export that section of the timeline as a Clip.
import it into the project, and then cut into the sequence on a higher track?
now you’d just be exporting video sources as opposed to video/gfx sources…
and that should also work around the problem.
I don’t know why this has happened….but that should help you get past it.
Alex Udell
Editing, Motion Graphics, and Visual FX