I hope people don't mind me offering this as a token of my gratitude, should someone be able to resolve this-
I'm completely stuck now and feel powerless, unable to finish this edit because of this technical problem...
Basically, when I apply Time Remapping to a nested sequence, it becomes black from about halfway through, onwards. If I disable Mercury Playback Engine, it solves this issue and the blackness is replaced by the remainder of the clip but other problems happen (edge feathering suddenly isn't possible[!?] and obviously performance)
Not sure if it's directly related but if I apply a new Edge feather it curiously slips clips back or forward a few frames..
Here's the video I made illustrating the issue:
https://www.youtube.com/watch?v=HOspXIKSnNw
Thanks so much for any help or ideas : ]
Luke
