-> Check whether there is any empty Track in the playback Cue.
Stopping Behavior when the Volume Is Zero
-> Voice Behavior
Check whether the playback is being started when the volume is zero.
Playing a Cue (with a selector) without specifying the selector or label
When playing a Cue of type Switch or Track Transition, you need to specify a selector or label beforehand.
-> Set the appropriate selector or label before starting the playback.