Android touch raycast not always firing

Questions & Answers
1

I’ve tried several variations of using Input.touches but it seems that no matter what, it is frustratingly missing some of the touch events which is leading to players having to double or even triple touch sometimes on their android screen just to get the event to fire.

Does anyone see a problem with this code?

void Update()
{
    if(Input.touchCount > 0)
    {
    	foreach(Touch touch in Input.touches)
    	{
    		if(touch.phase == TouchPhase.Began)
    		{
    			Ray ray = gameManager.mainCamera.ScreenPointToRay(touch.position);
    			RaycastHit2D hit = Physics2D.Raycast (ray.origin, ray.direction, Mathf.Infinity);
    			if (hit) {
    				if(hit.transform.tag == "PlayerCore")
    				{
    					//functions and stuff here that are not always firing....
    				}
    			}
    		}
    	}
    }
}
2

Problem solved, solution can be found here: RaycastHit behind object - Unity Answers

There was a semi-transparent object in front of the touch causing the raycast to not go through. Resolved it by setting the raycast to only the layer it was required on.