I have upgraded my chromium to the latest version (currently 87) and VP9 decoding has stopped working. I get this error whenever I try to play a VP9 video on YouTube:

Chromium GPU page shows me this error:
[980967:1053074:1125/212921.939923:ERROR:vaapi_utils.cc(47)] : vaMapBuffer failed: invalid VABufferID
[980967:1053074:1125/212921.940044:ERROR:vaapi_video_decode_accelerator.cc(528)] : Error decoding stream
[980967:1053155:1125/212926.108133:ERROR:vaapi_utils.cc(47)] : vaMapBuffer failed: invalid VABufferID
[980967:1053155:1125/212926.108211:ERROR:vaapi_video_decode_accelerator.cc(528)] : Error decoding stream
And media page shows this error:

I tried using h264ify extension and h264 videos work just fine with hardware acceleration (MojoVideoDecoder). So only VP9 videos are not playing.
Seems like other people have the same problem too: saiarcot895/chromium-ubuntu-build#102
I'm not entirely sure if this bug is related to this project or not. Feel free to close it if it's not.
Thanks for your help.
I have upgraded my chromium to the latest version (currently 87) and VP9 decoding has stopped working. I get this error whenever I try to play a VP9 video on YouTube:
Chromium GPU page shows me this error:
And media page shows this error:

I tried using h264ify extension and h264 videos work just fine with hardware acceleration (MojoVideoDecoder). So only VP9 videos are not playing.
Seems like other people have the same problem too: saiarcot895/chromium-ubuntu-build#102
I'm not entirely sure if this bug is related to this project or not. Feel free to close it if it's not.
Thanks for your help.