Hello,
please make sure that “Background Audio” is disabled in the setup of Cubasis. Then the red bar should disappear when pressing the home button.
To quit Cubasis you can also:
- Leave Cubasis (i.e., press the home button)
- Doubletap the home button
- Tap and hold the Cubasis in the bar at the bottom of the screen
- Tap the red icon
Kind regards,
Frieder