I'm on MAG250, YT app latest version 1.3.9, works well for a week, but last few days picture quality is very low regardless of what I'm doing in settings window! May be a bug, or is it just me?
This issue is fixed in the new version 1.4.2 https://wiki.infomir.eu/rus/set-top-box/stb-linux-webkit
With the new Youtube version (1.4.2) all videos get an error: "Youtube has blocked this video from viewing on set-top box device." Is there a resolution for this?