Everyone, I've found a little work around. Whilst there are no menu
items on the device, it does still respond to voice, so I can just say
"ok Google, show me the driveway" and it'll load up that Nest camera
feed. but more inportantly if I just say "...
Yep, I have the same issue here in the UK the last few week, come down
to my device, swipe the art to access the menus etc. But I just have
"Curated Art" and can't access anything else like Home Control. Pulling
the power and putting back in fixes it...