So I have a Totems of Hircine quest that's taken me back to Ansilvund but when i get to the final chamber the game freezes on the loading transition I've reloaded the game data and removed autosave but it still won;t load the final chamber

My choices are to just abandon this quest or lose about 5 days worth of progress. Unless anyone has any other suggestions as to how to get this to work

Just realised i can;t dismiss aela until i complete the totem's quest, so I have to lose 50 hours of gameplay. this really really svcks.