I've noticed everyone complaining about having to do a system restart. I have 5 roku devices. 3 of the roku's are the basic version that I have in guest bedrooms or outside on a patio. The other two are the higher end 4k versions.
I've noticed that only the non-4k versions have the problem. So far, it has been the 3 lower end models that loses sound where I have to do the system restart. Annoying but a fixable solution.
Not sure if there was an update or what but this started on these 3 devices about 2-3 weeks ago and like I said, the higher end models do not have the issue. Could that point to a potential issue with lower end versions?