I had exactly the same issue. But in my case I setup a device password that probably was in one of the PW leaks. I was listening to spotify on my phone and sudd

I had exactly the same issue. But in my case I setup a device password that probably was in one of the PW leaks. I was listening to spotify on my phone and suddenly it switched to a different device unknown to me and played mostly latin songs. When I changed the device pw it stopped