I'm curious...for those that are having issues, do they (and it doesn't seem to be mentioned as yet) have the Dropbox backup turned on? (Pro/AS only) This is, from my standpoint, something that is tied to backups somehow and might be coming into play, although not obviously if so. That, or just the ability to backup to Dropbox could be a factor even if not used.
I haven't had issues with backups at all, but I have been following this thread to learn more about what happens, to gain insight, and this morning I somehow considered this.
Always check, download, and install the most recent update of your software to ensure that issues may have been corrected.