I’ve got sort of the same problem.
I online programmes with a lot of group clips. When the show is online mastered, assistants consolidate the master-offline.
My problem come when at seasond end some shows have a recap before the finale.
The editors then should be able to use my graded online master to edit the recap programme, but all grouped clips are offline. Resulting in them using the consolidated offline master. Then I have to grade everything again.
The only workaround i’ve found is to copy my grading.
Avid Symphony Nitris 5.5.1
Mediastation Editshare
OSX 10.6.6
32 GB Ram, 2×2.66 GHz quad core