A week ago, I helped a friend set up her new Google Chromecast and Google Home Mini. While doing so, I connected to her Facebook on my phone and logged onto Spotify on her account for the Google Home Mini to play from.
I have since then logged out of her Facebook, logged out of her Spotify and on to my own, but whenever I attempt to play anything on Spotify it pauses her music on her Google Home Mini although we're on separate accounts.
Whenever I open Spotify and she's playing music, I get the option to "Listen on this phone" or to continue listening on the Google Home Mini.
I have tried to go into the device on Spotify and press forget, I have tried to open settings and log out and in again, I have tried to open settings on a web browser and log out on all devices, all of which result in the same - I am still somehow tied to her Google Home Mini, although we're not on the same network, not on the same Spotify account, and my Google Home (the Android app) does not have her home either.
I hope you're able to shed some light on what is next to do.