OnTriggerEnter2D and OnTriggerExit2D trigger non-stop

I have two prefabs which they spawned at the same position. A has capsule collider2d attached and B has circle collider2d attached both set istrigger to true and also rigidbody2d attached.
I gave both objects with different tag, and implement ontriggerenter2d and ontriggerexit2d inside object a.
When i start the game and debugging, the ontriggerenter2d and ontriggerexit2d triggers every frame. However, if I dont implement either one of the trigger, it will just detect one time not every frame.

Am I missing something here?

 

This behavior seems wrong. Try putting debug statements into your responders that tell you what they hit, something like:

Code (csharp):

1.     void OnTriggerEnter2D(Collider2D col)
2.     {
3.         Debug.Log( "Enter:" + name + " -> " + col.name);
4.     }
5.     void OnTriggerExit2D(Collider2D col)
6.     {
7.         Debug.Log( "Exit:" + name + " -> " + col.name);
8.     }

 

Hi, thank you for your reply.
That's kind of weird, your code works well if I don't comparing tag in those methods.

My code is like following:

Code (CSharp):

1. private void OnTriggerEnter2D(Collider2D collision)
2.     {
3.         if(collision.gameObject.CompareTag("MistakeCollider"))
4.         {
5.             Debug.Log( "Entering" );
6.             collision.gameObject.GetComponent<CapsuleCollider2D>().enabled = false;          
7.         }      
8.     }
9.  
10.     private void OnTriggerExit2D(Collider2D collision)
11.     {
12.         if(collision.gameObject.CompareTag("MistakeCollider"))
13.         {
14.             Debug.Log( "Exit" );          
15.             collision.gameObject.GetComponent<CapsuleCollider2D>().enabled = true;
16.         }      
17.     }

Does it mean one of the collider should not be inside of another collider?