Same here. Stuck when coming back from escaping the camp. I spent hours and hours on this game. Yeah as soon as Radzig says lets talk in private the infinite loading starts. And yes you can hear music in the background looping.
I cant finish the Game!!! One more thing! Just remembered, does anyone still see the monastery mission running in the background? Like saying go Pray but that mission ended after you finish off Antonious? Did anyone actually kill him at the monastery and not finish the mission with him? I am starting to think that if you kill him at the monastery and not do what he says the games bugs out after that… then the loading with Radzig is the final straw as I can see the mission is running in the background saying, go pray, go eat, go to library even though I am not at the Monastery! anymore.