Weird artifacts on video

Hi all,

I’m getting there with resolve but I seem to have these odd artifacts between a couple of clips and right at the end. They’re not in the unrendered edit and I’ve tried both QuickTime and MP4 with the same outcome. Best viewed on a big screen.

Any thoughts?

Can’t help, Lee. Never had that in all the Resolving I’ve done.
Certainly a strange one.