WorldToScreenPoint returning ridiculously high number

I have a script that will raycast and take the transform.position of the collider $$anonymous$$t and another raycast on a second collider $$anonymous$$t and take their transform position to create a rect. The original code without worldtoscreenpoint works 100% fine, but as soon as I add that in, the number keeps increasing to ridiculous, near infinite numbers. I tried to figure it out but it just doesnt make any sense how one of the worldtoscreenpoint works properly and how the other worldtoscreenpoint doesn't. How do I fix t$$anonymous$$s?

 using UnityEngine;
 using System.Collections;
 
 public class TopCamView : MonoBehaviour {
 
     public Texture2D randomtexture = null;
     public Camera cameracomp;
     public static Rect selectionBox = new Rect(0,0,0,0);
     public Vector3 originalPos = -Vector3.one;
     public Vector3 currentPos = -Vector3.one;
     // Use t$$anonymous$$s for initialization
     void Start () {
         cameracomp = GetComponent<Camera>();
         //cameracomp.orthograp$$anonymous$$cSize = 
     }
     
     // Update is called once per frame
     void Update () {
         CheckCamera();
     }
     void CheckCamera() {
         if (Input.GetMouseButtonDown(1)) 
         {
             RaycastHit $$anonymous$$torg = new RaycastHit();
             Ray rayorg = Camera.main.ScreenPointToRay(Input.mousePosition);
             if (Physics.Raycast(rayorg,out $$anonymous$$torg))
             {
                 originalPos = $$anonymous$$torg.collider.transform.position;
                 Debug.Log("raycast original: " + originalPos);
             }
         }
         else if (Input.GetMouseButtonUp(1)) 
         {
             if (selectionBox.width < 0) {
                 selectionBox.x += selectionBox.width;
                 selectionBox.width = -selectionBox.width;
             }
             if (selectionBox.height < 0) {
                 selectionBox.y += selectionBox.width;
                 selectionBox.height = -selectionBox.height;
             }
             /*originalPos = -Vector3.one;*/
         }
         if (Input.GetMouseButton(1)) {
             RaycastHit $$anonymous$$tcur = new RaycastHit();
             Ray raycur = Camera.main.ScreenPointToRay(Input.mousePosition);
             if (Physics.Raycast(raycur,out $$anonymous$$tcur))
             {
                 currentPos = $$anonymous$$tcur.collider.transform.position;
             }
             originalPos = Camera.main.WorldToScreenPoint(originalPos); //variable that screws up
             currentPos = Camera.main.WorldToScreenPoint(currentPos); //t$$anonymous$$s one for some reason is fine
             Debug.Log(originalPos);
             //selectionBox = new Rect(originalPos.x, InvertMouseY (originalPos.y), currentPos.x - originalPos.x, InvertMouseY(currentPos.y) - InvertMouseY(originalPos.y));
             selectionBox = new Rect(originalPos.x, InvertMouseY(originalPos.y), currentPos.x - originalPos.x, InvertMouseY(currentPos.y) - InvertMouseY(originalPos.y));
         }
     }
     public static float InvertMouseY(float y) {
         return Screen.height - y;
     }
     void OnGUI()
     {
         if (originalPos != -Vector3.one)
         {
             GUI.color = new Color(1,1,1,.5f);
             GUI.DrawTexture(selectionBox,randomtexture);
         }
     }
 }