When your scheduled clock runs out of items before reaching the end of the hour, PlayIt Live automatically uses your Playout Pattern to fill the remaining time. The Playout Pattern is a repeating sequence of track groups that acts as a fallback to ensure continuous programming whenever a clock doesn't contain enough content to fill the full hour.

You can configure your Playout Pattern via Manage > Playout Pattern to define which track groups should be used for this automatic fill. If you want your clock to completely control what plays for the entire hour without any Playout Pattern items being added, make sure your clock contains enough content to reach the end of the hour, or add a Fixed Time Marker at the end of your clock to prevent any additional items from being scheduled. You can see where each item in your playout log came from by checking the "Reason" column in Manage > Playout Log, which will show either your clock name or "Playout Pattern" as the source.