Integration not able to invoke fetch-incidents command at given interval

[AmanSinha05]

I am trying to create a custom integration and have read that xsoar will invoke fetch-incident command at the given incidentfetchinterval timeframe on its own. But when i run the integration to fetch incidents i dont see it adhering to the given interval it either invokes function randomly or every min. any leads are appreciated.

Cortex XSOAR