Thanks! It seems I didn’t do my proper checking before I posted this, which is embarassing… I’d tried a few clips from that folder and none of them were working, but now I’ve tried a few others in other folders and even the same one from the same shoot, and they work fine! So it’s just those few clips. Any thoughts on a quick way to losslessly convert them then?
Also maybe worth mentioning they’ve gone through pluraleyes for syncing but so have other clips that worked fine.