i have noticed a huge bug with no fix that i have found.
after completing A new order the next quest no matter which side wont start up after isran or garan merethi will tell you to talk to someone but the next quest (prophet) wont actually start.
I have tried this with mods, with no mods but the unofficial patch, and no mods at all.
I have had a friend test it and it worked fine with him, it used to work when i used to play but it suddenly stopped.
console commands with this quest DO NOT work at all setstage/ startquest nothing
Fyi another thing the Hearthfire dlc is having another issue. none of the yarls that assign houses in the dlc will talk to me i have found a way around it but is " immersion breaking" by using player.relationshiprank "yarl id" 4 but i cannot become thane nor get a housecarl.
i dont know what other details i can provide.