Finder search on shared volumes: Works on 10.7, not on 10.8
In our office, we have a Mac Mini acting as a local server running OS X 10.8.3 with an external hard drive connected. Each person in our office connects to the Mac Mini through an idividual user account, so that we can control each user's access to the folders on the external hard drive. Some users are on OS X Lion and others are on OS X Mountain Lion.
All of our Lion computers are able to connect to the Mac Mini and do a Finder search for any items in the shared volume. So a filename search for ".doc" on the "Shared" scope returns all Word documents on our Mac Mini server which they have permission to access.
That same feature is not working properly for users connecting through Mountain Lion. When a Mountain Lion user does the same search - filename containing ".doc" - no results are returned initially, however if they toggle the search scope back and forth (like from "Shared" to "This Mac") a few times, eventually some results show up on the Shared search.
But with this issue, we can't be confident that the results listed by any search are complete or not. Our business generates a lot of documents and audio files each day and the search function is a crucial part of our daily workflow.
The Mac Mini server has recently been upgraded from Lion to Mountain Lion 10.8.3, and Mountain Lion users have just upgraded from 10.8.2 to 10.8.3, however the issue is still the same: users connecting with Lion 10.7.5 can search shared volumes properly, but users connecting with Mountain Lion 10.8.3 cannot.
Is there a solution to this that doesn't require a downgrade to Lion?
MacBook Pro, OS X Mountain Lion (10.8.3)