Unfortunately, this update (5.6.1) broke my nested tags on my Mac. All my tags seem to be nested appropriately in the tag section; however, all association was lost with the actual notes. So where I had every note tagged by at least one tag, now not a single note has a tag associated with it. Not cool! The web experience seems to be the same as well. Curiously enough, the tags are still showing appropriately on the Windows Evernote version (unfortunately, this is my work computer). Are you guys not supporting nested tags anymore? I certainly hope that's not the case.