Why the YouTube app does not display video?

[Android Central Question]

Hi, I have a Samsung Galaxy Tab A tablet. Suddenly, the YouTube app stopped displaying the videos while the audios are just fine. I already updated the app and also stopped it and cleared it's data. The website is still working so I am using it while the app is not fixed.

 

[Rukbat]

If there's terrible lag between you and the nearest YouTube server, video slows to a crawl (or worse), but audio is very narrow bandwidth, so it keeps coming. Of course it could also be that part of the app got corrupted. Have you tried going to YouTube with your web browser? (If it's the same with the browser, it's something outside the phone, so you can't fix it.)