My solution was disable hardware acceleration and restart

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My solution was disable hardware acceleration and restart

My solution was disable hardware acceleration and restart

I am using Fedora and the problem is the codec, you need to download libffmpeg.so and replace the file with the same name in the Opera path
https://www.reddit.com/r/Fedora/comments/pko325/fedora_34_and_udemy_cant_watch_videos_anymore/