Checking in to see if there was any resolution on this, it just became an issue for me. We had an area 5-10 sec power loss so I have been blaming this on powerline work but it's been too long. Was blaming cable, but it's Almond, white screen - no data. No physical/connection/location/setup changes. Have to reboot and keep your fingers crossed.
If someone who knows could give me a heads up if this is a known-but-unresolved issue, it would be a big help. I'd rather change it out now than a week from now.