Hi,
I am having exactly the same problem. About one third of my clips to be rendered in Color render the entire source clip. And because of the way I work some of these can be 41 minutes long.
For example the project I am working on at the moment has 3 source rushes each 41 mins long. The project in Color has 39 clips from these 3 and the clips are often rendering the same 41 min tape again and again.
And this is a problem for me, I don’t wish to wait this long for it to render.
Catherine