I've had a number of metadata issues since the latest release of LR and also switching to a NAS at that time. Bad combo obviously. The latest is when I make a change in LR I get the little exclamation mark telling me there is a metadata conflict. When I click on the Save Metadata tab a message comes up that says the metadata has been changed in another application rather than LR and do i want to overwrite the metadata in my catalog. I have made the change in LR only and not an external application. If I click yes I have often lost my changes. I've also tried the Read Metadata option and the Synch metadata option, both with mixed results and often coming with incorrect messaging too. I'm stumped. Any ideas guys? Thanks.