I have been stuck on this quest for a couple of days now. I notice that this bug has been in the game since the launch of the Thieves guild and never addressed by the Devs.
Basically you get stuck on the point hwen you are supposed to open the Door to the Palace kitchen, and you are unable to interact with it.
I have restarted the quest 5 times.
I have disabled addons.
I have tried different permuations of attacking the scripts. NO LUCK.
I would like to finish the questline on this character. Please help.