Using the Android app, if I connect to a speaker, then go back to listening on my phone (either manually or because I pause the music and the speaker connection times out), I am unable to reconnect to any speaker unless I restart the phone. When I try, it just says "Connecting..." regardless of whether I am trying the same speaker of a different one. After restarting the phone, I can connect.

This has been happening for a week. Everything worked fine before. All devices are on the same network. I have tried:
- restarting the network
- restarting the chromecast speakers
- clearing the Spotify app cache
- force-closing the Spotify app on the phone
- turning wifi on and off on the phone