Youtube skipping to the end of the video in Safari

Further discoveries: This happens on all video streaming platforms, not just YouTube. Facebook, Twitter or even video ads from different webpages. Still fixes after restart but don't know what causes it.

What I also discovered, that this also seems to happen on multiple browsers. So this is not a Safari only issue anymore.

Another find is that even iMovie has issues. I made a screen recording for you guys to see. Even when I was editing the videos I had issues in iMovie too. Video players like QuickTime, VLC work with no issues.

Just posting an update with the fixes.

• one of them is to force quit the “coreaudiod” process using terminal or activity viewer
• second is to reset NVRAM.

Well if it was a YouTube issue then I suppose we would see this on other forums too. There is also another post like this with a fix but it’s too old to apply today, since the last time it was a flash player issue. (https://discussions.apple.com/thread/7817063)

This is clearly a Safari issue since I have never seen this on any other devices or browsers.

https://youtu.be/yu7FvlfuThY

Also discovered that Reddit Videos work normally too. So.. maybe is a codec issue? something..