Yet another bug in this new worthless app: when the roam is charging it is constantly seen as ‘playing’ in the background. Meaning if I listen to music in another room on other devices it keeps suggesting the charging roam as the device to send music too / play music on / connect rooms too (this need to deselect playing rooms to not join them is a massive irritating bug in a family setting!).

The roam doesnt say its playing in the app. But other devices connected to it do see it as playing. As a home assistant user HA shows it playing and triggers its automations and dashboards on it. While no music actually playing on it. 
also explains why the battery is draining so fast probably seen the new app. It keeps the roam alive in a state of playing without playing music..