The UC_SYSTEM_SETTINGS - CONDITION_CHECK_INTERVAL is set to 1 by default when installing the initialdata
Documentation says this should be 60:
Release : 12.3
Component : AUTOMATION ENGINE
Defect with the initialdata default
This has been determined to be a bug with the delivered initial data. This will be fixed with in a future release of 12.3 and in 21.0 so that the value is set to the default of 60 when the initialdata is first installed. As a workaround, CONDITION_CHECK_INTERVAL can be set to 60 manually or deleted from UC_SYSTEM_SETTINGS and it will take the default.