I have been busy for the week, but got back to it after having it unplugged for a while (since I had reverted to the Vero 4K+). Well, everything is back to normal. It did ask for an update when I re-connected it, and once completed gave me the usual frowny face, but it’s been otherwise flawless.
I also did the update as per Sam’s advice in another thread Playback issues since last update - #3 by sam_nazarko
All good so far.