I am very frequently having Flash CS5.5 freeze up whenever I try to copy and paste Library content between two different FLAs. The object I'm copying is usually a Movie Clip with some child Movie Clips. The larger or more complex the FLA you're pasting into, the worse the problem seems to be.
I''ve experienced this on two different systems, Both Macs running 10.6.7. The problem is bad enough that it renders 5.5 unusable.
Anyone else had this problem? Any word of a fix coming?
Have you had any response yet?