Well the short answer here is you can’t.
I’ve tried retrimming all the RED files but that doesn’t work either.
And in the RED trim process as laid out in the manual as far as I can see this option doesn’t exist:
“Now, right-click the conformed timeline in the Timelines list, choose Import > Additional Clips With Tight Filename Match, and then choose the directory to which you copied the trimmed R3D media in step 5.”
I’ve been reconforming this film for 2 days straight now and still nowhere. Don’t really feel Resolve is fit for purpose right now