There is a OnTriggerEnter2D function, it triggers correctly

private void OnTriggerEnter2D(Collider2D other)
{
    if (!assailables.Contains(other.transform) && other.GetComponent<IAssailable>()!=null)
    {
        Debug.Log(other.transform.position);
        assailables.Add(other.transform);
    }
}

But when i try to verify it again in update function with Collider2D.overlapCollider, it will return 0.

CompositeCollider2D groundArea = GetComponent<CompositeCollider2D>();            
Debug.Log(groundArea.OverlapCollider(new ContactFilter2D(), new Collider2D[] {assailables[i].GetComponent<Collider2D>() }));

enter image description here

I don’t know why it can trigger OnTriggerEnter2D but returns 0 when I call OverlapCollider, is it correct?

The compositeCollider2D is dynamic, so I want to check it again and removing from assailables when it has not been in the compositeCollider2D.