The game does have a tendency to get audio stuck in its craw, as you've probably witnessed before with "Passing thermal layer" or maybe "Sonar contact, bearing...", or if you've run into an anti-sub net, that "SCREEEE!!!" will play when reloading a Save, or perhaps a torpedo "firing". Same happens with the radio. You will usually get one repeat, and then it should be OK - but not always... Captain Midnight's CBS is a station that has issues, but I cannot remember the date... one of the "events" is out of sequence, and for whatever reason, it rudely crashes the game. A date issue elsewhere in the game is ignored, but not this one... Run Digital_Truckers'
RSM (Radio Station Manager) mod on it, and it will find the bad event.