Ill watch the Activity Monitor and the Aperture pid “Open files and Ports” while rebuilding a lib, and see hangs accumulate. This seemed to have change in Maverick, where the time line keeps moving but the number is higher. Just curious if any one also feels like there are more hangs but the speed to update is fine.

I use another back up type of the Library and files so Im not too worried about it. Also the amount of Hangs are say 10 the first rebuild but fewer the next rebuild.
Cheers DBM