SVPtube 2 and YouTube Live Streams

Having a problem with playing live streams in MPC-HC/BE and PotPlayer. Stream plays for about 5 seconds then freezes. I have a bandwidth monitor and activity ceases when frozen. If I use MPV this does not happen. I can input the copied YT link straight into MPC-BE/PotPlayer and they work fine. If I use the "Copy Url" option in SVPtube and input them into the problem players it also freezes.

This does not happen with non-live videos. Is this a problem with the way either SVPtube and YouTube-dl is handling things combined with something YT did with m3u8 streams?

Thanks in advance.