Understanding colliders - works for one moment

Unity Engine
1

Simple scene, ball with rigibody and sphere collider ( lay on the ground ). Next to this is cylinder controlled by mouse ( forwar/back ) with mesh or box collider ( no matter what ). But this collider has “Is trigger” on.
Now the script attached to cylinder:

void OnCollisionEnter(Collision collision) 
	{
		Debug.Log("Enter collision: " + Time.time);
	}
	
	void OnTriggerEnter(Collider other) {
		Debug.Log("Trigger enter: " + Time.time);	
	}
	
	void OnTriggerExit(Collider other) {
		Debug.Log("Trigger exit: " + Time.time);	
	}
	
	void OnCollisionStay(Collision collisionInfo) {
		Debug.Log("Stay on collision: " + Time.time);
	}
	
	void OnCollisionExit(Collision collisionInfo) {
		Debug.Log("Exit collision: " + Time.time);
	}
	
	void OnControllerColliderHit(ControllerColliderHit hit) {
		Debug.Log("OnControllerColliderHit");	
	}

Simple ? Yes.
What does it do ? When I start the scene and move mouse very fast that in 2 or 3 ms it touches the ball i’ve got OnTriggerEnter log. But only once. I can move the cyllinder in every direction but no another OnTriggerEnter will show.
There is one more thing, when I start the scene and wait some moment ( ex. 1 sec ) and then move cyllinder to the ball nothing is happened … no collision, no trigger, nothing.

Now, is there a bug, problem, my stupid brain or something wrong ? Maybe the trigger must be release ?
I don’t get it. Can someone explain this to me.

2

Hello there!

I’m going to take a wild guess and say that your rigidbody goes to sleep. By calling rigidbody.WakeUp() in the Update function of one of the object’s scripts your problem should be resolved.