@ubi-spud I also investigated the temple. And am told to find stowe and erke, but I don't have any icon. And even when I go to the governor's villa nothing happens.
Also just ran into this. Can't progress the main story.
I also am experiencing this issue, and have done all the other available areas in the game, with 90+ hours. I am on xbox series x. Is there anything I can do to help figure it out? Thanks! The video posted outlines exactly what I am experiencing.