I currently have a problem in Markarth which for me seems to be a gamebreaker right now.
Thing is, I can't enter a single building. It doesn't matter if it is day or night, if I waited for a while in the city, I can't pick the lock of a door and I can't enter even if it has the quest mark on it. Since I am playing on a PS3 (seems logic since I chose this subforum) I can't use the console commands to get myself out of this one, so I had to check on the forums.
I assume this is because when I did the questchain for the "No Ones Escapes Cidhna Mine" thing, I chose the option to fight the guards while I was in the temple and left the city, thus living me in some kind of "phasing" which won't allow me to progress in the town. When I go back to Markarth I am instantly being attacked by the guards, but no matter which conversation line I choose, the conversation just starts again from the beginning. I can leave the conversation and run around in Markarth though, until a guard finds me (that's the reason I found out about all the stuff mentioned above).
Now I found a workaround which said "go to the temple and 'restart' the quest another time", but like I said I can't enter buildings. I haven't tried just entering the mine though cause I guess it's entrance is working like the one of a building, but I will a look if that works later today.
Sorry for all the lamenting, but if somebody has constructive feedback or ideas how I got fix it without starting he game from scratch, would be cool.