I upgraded to 4.6.2 this week and all my metadata is broken, my albums are now all split out (mainly ones where I had updated album artist to Various Artists so it would sort and display properly instead of an entry per track), artwork that was present is now 'missing', albums I had updated sort titles and stuff on are now where they used to be as if I'd never sorted them out - total mess in my libraries post upgrade. We followed the instructions to download and drag into applications folde