MacOS Big Sur Beta 10 - Youtube in Safari

Anyone else having problems to play youtube videos within Safari in the Big Sur Beta 10?

No matter what video I choose, it always states an error occured. Only happens since Beta 10.
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Stephan
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Confirmed that "All you have to do is disable "Develop tab -> Experimental features -> VP9 decoder", and then restart Safari" fixes the issue. Thanks, @Arun_Kudiyal.
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DynDuo
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yes, i have same problem, even i restart macbook, problem still exist.
but youtube on my firefox is playable.
Posted by
nifhanif
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Same problem, I got "An error occurred. Please try again later. (Playback ID: xxxx...". No safari extension is installed.
Posted by
lisai9093
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I have the same problem too.
Posted by
Sylvestris
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I had the same issue. Any video with that matter, YouTube, Netflix or any other, the video was not played in the Safari in this beta. On the other hand, the same video does play in other applications like Google Chrome and Firebox.
You can change this setting. All you have to do is disable "Develop tab -> Experimental features -> VP9 decoder", and then restart Safari. This would help your videos work normally!
Good luck developers! 👍
Posted by
Arun_Kudiyal
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Confirmed that "All you have to do is disable "Develop tab -> Experimental features -> VP9 decoder", and then restart Safari" fixes the issue. Thanks, @Arun_Kudiyal.
Posted by
DynDuo
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How do i get "Develop tab -> Experimental features -> VP9 decoder" option ??
Posted by
mnadhilf
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@mnadhilf If you don’t see the Develop menu in the menu bar, choose Safari > Preferences, click Advanced, then select “Show Develop menu in menu bar."
Posted by
justinta7
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I was having the same problem with my videos playing back on YouTube.. Thank you for the fix!
Posted by
Lazybird44
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I did disabled the VP9 decoder and am still facing the issue
Posted by
KrinaK
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disabled the VP9 decoder but still same problem with Netflix but YouTube works fine

Posted by
Akki99
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Thank you @Arun_Kudiyal , it's really works on Big Sur Beta 11.0
Posted by
NickBalmer
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Thank you! Works for me.
Posted by
lovely10987
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We are also facing this issue, this is happening when we are using a Proxy client service which uses SystemExtension: AppProxyProvider for proxying traffic. If there is not proxy client in data path, YouTube streaming is working fine.
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freefire
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I just tried this workaround with the latest 11.1 build... and still no joy. Anyone else? Thanks!
Posted by
Candradasa
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I have the same problem on Big Sur however the problem has also popped up for me on Catalina and Mojave from time to time over the last few years. I tried disabling vp9 encoding as suggested but it didn't work for me.

The solution I have used in the past that worked and seems to always work is to kill the "coreaudiod" process via "Activity Monitor", allow it to automatically relaunch and wait a few minutes. If you kill "coreaudiod" and then loose all system sound you just need to wait longer and it will return.
Posted by
trmtv
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