Im sure the majority of people playing this game will come at a point where they think that their game it glitched because they cant do homestead missions, and level up artisans.
Here's what you need to do:
-check the map and make sure the mission is in the area where you are. Sometimes they can be in another area
-do other sidemissions if available, complete them, then check again if they become available
At first they wouldn't show up on my hub either. After doing some mail delivery, and other stuff they showed up. Im at sequence 5 btw --- "If Lee Harvey Oswald didn't quickscope then I'm not quickscoping." PSN: sgt_cumalot5713