It seems YT started another attempt at blocking alternative clients. They changed something in their API and both SmartTube and Tubular (NewPipe fork) are completely broken. Apparently it started happening this past week, but we personally just felt it today.
Edit: SmartTube already has an update but still not working for 4K videos it seems. Tubular still not working but it might be due to the upstream (NewPipe) is still working on a fix.
I wish we wouldn’t love under capitalism and creative people could just be creative for the greater good…
Same, and so many others I know share this sentiment. We’re working on it by advocating for a just, equitable, and overall better world. Keep spreading this message!