OP is mentioning this: https://github.com/jellyfin/jellyfin-ffmpeg/issues/529
It is clear from the log that the stream coming from that channel is crashing your hardware decoder. The reason I asked you to try with a more power machine is to see if the software decoder can decode that problematic stream as a workaround. Your system can decode something else means nothing for this specific stream from this specific channel because the ones that work with your system don't have a stream that will crash the hardware decoder. If the stream crash the hardware decoder and not even native ffmpeg decoder can work with that, I don't know what else can I do seriously as I have no access to that stream anyway.
It is clear from the log that the stream coming from that channel is crashing your hardware decoder. The reason I asked you to try with a more power machine is to see if the software decoder can decode that problematic stream as a workaround. Your system can decode something else means nothing for this specific stream from this specific channel because the ones that work with your system don't have a stream that will crash the hardware decoder. If the stream crash the hardware decoder and not even native ffmpeg decoder can work with that, I don't know what else can I do seriously as I have no access to that stream anyway.