Just noticed that links for content on 3rd party apps are now on the homepage.
I clicked on one for John Wick 4 (not realising it was for purchase on Sky Store) and it crashed my Roku, like properly crashed and I had to remove the power to reset it.
I'll hazard a guess that if you don't have the corresponding app already installed, Now doesn't know how to behave and kills the Roku.
Solved! Go to Solution.