Try to let the Vault run 24-48 hours.  It looks like it has stopped but it hasn’t.  If it still trying after 48 hours and you have to shut down then do so.  Hold the option + command keys when starting AP.  Do all three maintenance steps in order, you will need your password for the first one.  Some where you have a mixed up Lib.  Building Smart albums is good to find referenced, Managed, offline, Missing,  copyright notice, etc.  Fix all offline and Missing images and then do the above maintenance step again. Then the smart albums till every things ok.   I found problems by doing a search for images that were “0” mb in size.  

Hi 

My example was just a weird example of how a data base can get messed up.  Get to know Smart album and use it cuz sometime it will make an album that you don’t understand how it came up with the results.  

Ive rebuilt my lib probably 30-40 times …. sometimes it got worse…. but Its the best its been in years now.  One reason people stop using Vaults is cause it does make you aware of possible problems.   You could just keep a copy of the lib on another HD and call it good.  My mess was cause in the early days I  screwed up moving things around and then tried to fix it with another error method.  Also had Hard drive that failed, power outages in the middle of working on the lib, etc…..     I had duplicates of images that the finder added  a (1) to the name  or sometimes  I had five of them.  Did a smart album for names that include (1) in the data;  also had some in the Version Name that way.  My biggest problem that corrupted the lib was adding Layer masks in Photoshop before importing them into AP.  But I love the program.  cheers