After migrating to CS6 faced a big show stopper.
In big FLA (was not able to reproduce), clicking on item in library changes it name to full path to it.
(e.g. folder/mc --> folder/folder/mc)
Saving the document produce same on file system.
It looks like timeline.name got corrupted.
The worst case is that jsfl still see old item name while traversing through lib. But can't do any operation on lib using its name.
Image bellow demonstrate the results:
Looking forward to receive any hint of fixing it.
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