Hello @eco2drew, there are currently two issues concerning BBC tracks, but one concerns UK based people only, and the other is .aac tracks on a QNAP. I don’t think either of these relate to you, but can you play .aac streams in other stations, or the .mp3 stream in the BBC ones?
Have you changed anything in the last few days?
To help #support, can you be clear about just how your kit is setup? Use this link as a guide.