This feature will be added later this summer.
Played song, volume, mute, etc. has changed but the related change is not visible in the app? Sometimes it happens and the best way to fix that is to restart affected speakers, either with Reboot speakers option or by unplugging the speaker from the power source for a few seconds.
Send me details of your issue, preferable with screenshot and any other data which can help me to deal with the problem as soon as we can.