There's so many differences between our savefiles and our system configurations that the bug could be a combinatorial explosion of things without access to source code.
This is super common in videogames. When some significant amount of people are experiencing bugs with a game and you're not, you should defer to the judgement of the ones who are having problems.
If you trigger the exit dialogue before picking up your stuff, the quest line gets stuck.
That's the only actual showstopper I encountered in 60 hours of gameplay.
You should see games from The Elder Scrolls franchise. Even in the latest version of Skyrim there still are game-breaking bugs they have not fixed.
It’s a hard problem. Extremely large open world, thousands of scripts and triggers and things to test. I sympathize. Gamers are the hardest genre of users to please.