NavMeshAgent and OnTriggerEnter/OnTriggerExit

Hi! The question is the following: there is an area when hit on which the game object is triggered by the OnTriggerEnter() method, but when this object is moving with navmeshagent, then OnTriggerEnter() and OnTriggerExit() It works constantly, as if the object constantly enters the zone and leaves it. Tell me, please, what could be the problem? p.s. sorry for english, this is a translator