I started a party in dungeon (lol - sounds funny), found a partner as well but due to ongoing connection issues i had to restarted my game app. After restarting i tried clicking "Continue" under dungeon but every time it always takes me back to the game home page. Here is the video for the same behavior.
https://photos.app.goo.gl/9WovkjkALRBnEcAr1