[falcowe]

I realize this isn’t remotely idea, but have you tried converting your QuickTime videos into something more avid friendly and DNXHD inside an MFX wrapper with Davinici Resolve? Maybe you’d have better luck with that? Or could you request from the video side of your project an MXF wrapped DNXHD QuickTime file? Again not ideal but it might have a better chance at working. Also one final thought, maybe something like VideoSlave (https://non-lethal-applications.com/.../video-slave-4) could solve your workflow problem? I know a number of people who have either been greatly disrupted by the lack of QuickTime support in ProTools or have made sure to not upgrade OSX because of it (which I know you can’t avoid if you got that new MacPro 7,1).