The patch to work on game data is not out. 1.3 is not that patch, never intended to be. The data patches are coming out later.
However, while I have not all the factions, the Main Quest and Civil War had no issues, and no side quest has given me any issues.
These quests may not have presented issues for you, however, excluding the civil war quest-line, I have encountered multiple game-ending bugs with both the main quest-line as well as many side-quest bugs (not all as fatal as main quest or faction quests). The truth of the matter is that this game is somewhat of a pandora's box, in that any number of things could go wrong at any given time, during any situation or quest without limitation. As a result, for a great majority of owners, it is not a question of IF the game will break, but when and how. Almost like a game of Russian Roulette. Eventuality is clear- keep pulling the trigger, eventually you will shoot yourself.