Unity - OnTriggerExit is not getting invoked when character control passes through

Question

Developing simple game prototype. I have a capusle as a player and character controller is attached to it. when it goes through the game object which has isTrigger checked, OnTriggerExit(Collider other) is not getting invoked. The script for OnTriggerExit is attached to the gameobject which is the child to a platform.

Any obvious reason why the the OnTriggerExit is not getting invoked? Attached the inspector screen shots of the player and isTrigger gameobject.

Answer 1

The box collider from CubeEnd is disabled.