Got updated OK but had a problem(?) msg.
Popup msg say that the updating encountered a problem & to refresh the page & try again; another "problem" in the the popup wouldn't go away so I clicked on the "refresh" arrow of firefox. Don't remember what I did exactly but the dialogues disappear & a popup said the update was successful & will be rebooting, etc.
Took a very long time (subjectively) to reboot, but eventually was able to reconnect to the MBL. Saw that the database was being "changed" (is this a rescan or recatalogue). My AVR is able to play a music album so that I think, for now, everything is OK.
Don't know how/why I got the popup saying that the update couldn't finish, especially it finally did, somehow.......