Fix

Assets/Scripts/Ingredient.cs

@@ -17,13 +17,12 @@ public class Ingredient : MonoBehaviour
         DefaultPosition = transform.position;
     }
 
-    // Update is called once per frame
     void Update()
     {
         if (isMoving)
         {
             Vector3 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
-            transform.position = mousePosition;
+            transform.position = new Vector3(mousePosition.x, mousePosition.y, transform.position.z);
         }
         
     }