Thanks Jim Firstly my delivery is tight, so I have my 'previews' set to my delivery codec, render the timeline as I go and then 'use previews' as I export. (i.e. I'd rather pay the render hit as I go, than have that be an unknown quantity at the end). To that end the default MPEG previews are no use to me (my final deliverable is either ProRes in QuickTime or AVCI in OP1a MXF). Secondly, and I see you are active on the Resolve forums, so you may be able to help, I'm roundtripping via Resolve for the grade. I'm rendering the grade from Resolve, in my delivery codec, as an XML of individual clips for flexibility. Then open the resulting timeline & copy/paste onto my master timeline, under the graphics layers. Before the copy/paste I am trying to ensure that I'll minimise any PPro render time - and the easiest way to do that is to see no yellow bar on the xml timeline. Even after I set the delivery codec manually for the xml timeline, AND remove the opacity key frame and crop effect that Resolve adds to every clip (so fx icon is grey) - the yellow bar is still there, indicating a mismatch - and thus more render time. I have a support ticket open with Blackmagic about this, but appreciate your thoughts.
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