I'm in that Jinora's birthday party stuff. The twins want me to get something from the mine, Jinora wants a gift, and when I talk to her, the MC suggests to go see how the twins are doing. So yeah, I go to the mine, but it says there is nothing else to do there. I've already found Katara and now she is in the coundil igloo, but I've tried talking to everyone and nothing happens. I cant' go back to the city either, so I'm stuck here. I hope I don't have to restart this slave route.
No, you don't have.
Follow these steps:
First of all, choose to have sex with Senna and Korra or have Jinora's birthday first.
1: Talk to everyone in the water tribe.
2: enter the cave and make the following combinations:
Left, straight and right.
Right, straight and left.
straight, right and left.
straight, left and right.
So you will have discovered all the secrets of the mine, and tenzin will say that you have already seen everything you had to see.
3: collect all items for Jinora's party:
Mountain ring: click on the mountain, then talk to korra to look for the ring (in this new update I think the ring is in the mine, so you may not need to do this).
Cake with Senna.
Lubricant with Eska and Desna.
Sugar with Zhuli.
Decoration with Shady.
4: Don't forget to invite everyone to the party, this will result in the old ladies' sauna scene.