Collision acting weird on mobile with touch input

I have a game where there are objects that move across the screen. You tap on them to stop them. I have an input manager script that either gets mouse input or touch input and sends a message to the object the ray hit. This works flawlessly when testing in the editor with a mouse. However, when I export to android on my Galaxy S6, tapping on the upper half of the object doesn’t stop the object. The objects do move relatively quickly across the screen, but I am fairly certain I’m tapping directly on the objects collider. It only seems to recognize taps on the bottom half, and a bit below the object. What may be causing this?

InputManager.cs

using UnityEngine;
using System.Collections;

public class InputManager : MonoBehaviour {

	private RaycastHit2D hit;

	void Update () {

#if UNITY_EDITOR
		if(Input.GetMouseButtonDown(0))
		{
			Vector3 mousePos = Input.mousePosition;
			mousePos.z = 10;
			Vector3 screenPos = Camera.main.ScreenToWorldPoint(mousePos);
			
			RaycastHit2D hit = Physics2D.Raycast(screenPos,Vector2.zero);

			if(hit)
			{
				GameObject recipient = hit.transform.gameObject;

				recipient.SendMessage("OnTouch", hit.point, SendMessageOptions.DontRequireReceiver);
			}
		}
#else
		if(Input.touchCount > 0)
		{
			foreach(Touch touch in Input.touches)
			{
				if(touch.phase == TouchPhase.Began)
				{
					Vector3 screenPos = Camera.main.ScreenToWorldPoint(touch.position);
					
					RaycastHit2D hit = Physics2D.Raycast(screenPos,Vector2.zero);

					if(hit)
					{
						GameObject recipient = hit.transform.gameObject;
						
						recipient.SendMessage("OnTouch", hit.point, SendMessageOptions.DontRequireReceiver);
					}
				}
			}
		}
#endif
	}
}

I believe the problem has to do with the increased input lag on android devices (this used to exist, I’m unsure whether it’s still a problem) and the fact that the objects move relatively fast. I have come to this conclusion by offsetting the colliders, which made the input function much more responsively.