Oy Vey. Why me? Another sweet FCP bug, produced by JeremyG.

Alight. Using the latest 'greatest' FCP 6.0.2, QT 7.3, OSX.4.11. Sound familiar?

Using ProRes HQ material (in both 720p23.98 and 1080i29.97).

If you take a coupla three ProRes clips, scale them down, composite them into a three up split screen, change their speed (to say 50%), then render the whole timeline at once (render-all), everything renders wrong. Some clips become full screen, some clips become still frames, some clips render just fine. Awesome...right? Okay, maybe not.

The workaround? Render in pieces. I render for a minute, then hit cancel, render for a minute then hit cancel, render for a minute then hit cancel. Then and only then will the renders show up correctly. Why? I have no effing clue. Also, changing the sequence to 10bit uncompressed seems to fix it as well.

This only seems to happen on material with speed changes in a ProResHQ timeline, if there's no speed changes, everything renders properly.

Can anyone reproduce this or has my system gone haywire? I have not tried other codecs, but I can get it to constantly repeat. Maybe it's a Quicktime thing, maybe a ProRes thing, maybe it's a Kona thing. Maybe I am just imagining this whole thing and I need more coffee to bring me back to reality. What do you all think?

More tests coming and I will update as I know more.

Jeremy