Safari 12.0.1 YouTube problem
There appear to be issues after the latest 12.0.1 Safari update on Sierra with YouTube video playback. At this point, I'm not sure if it's a Safari problem or a YouTube problem, but many videos I've played before, no longer play. I see a YouTube "An error occurred" message upon playback or video thumbnails fails to load or when clicking a new video, the previous video plays. Doesn't happen to all videos, but it's happened repeatedly over the past few days. Anyone else experiencing these sorts of problems?
iMac, macOS Sierra (10.12.6)