У вашего броузера проблема в совместимости с HTML5
Link to the Google Forum post: https://productforums.google.com/forum/?utm_medium=email&utm_source=footer#!msg/youtube/v6wAC6Bxeo8/-UrhY1qSCgAJ
Attach your screenshot of the watermark on your channel
Submit post and the YouTube people will fix :D
Hit that subscribe button if it helped :D
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