hello @TeamYouTube why am I seeing gray videos 



pic.twitter.com/9cfvYPCDeh
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Thanks for sharing the info. If you are using a browser, try clearing your browser's cache and cookies. Here's how: https://goo.gl/dwzcyo . If you are using the app, try uninstalling & reinstalling the app updates after restarting the device to see if that makes the difference.
now its working after clearing my browser cookies from desktop.
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