Maybe you need to complete one of the village projects to progress? Have you been doing the free hunting and building the little things the Chief's brother wants?
It pretty much has to be either that, or something the shakalaka has or hasn't done, doesn't it? I can't think of another reason why it would stall progress if you've completed all the village quests you have available.
I'm right behind you, I have like 3 more 5* quests to do, but I stopped to fulfill all those Moga requests. I should catch up today though. I'll come back and let you know if I notice anything helpful.
@Thirdrail1 on Twitter. Understand this: Game reviews are written by people who think being a "video game journalist" is possible.