Music continuously pauses with new IOS 11 update

All my music (youtube, spotify, soundcloud) pauses whenever I receive a new snapchat, whether any apps are open or not. It also randomly pauses even when I don’t get a new notification of any kind and I am not touching my phone (Iphone 7, less than two months old). It also pauses when I open the snapchat app, and sometimes others. Wha is causing this and how can I stop it? It extremely frustrating, especially when playing music on speakers, in the car etc. when I cannot constantly press play or close apps, etc.

Thanks!