Instantiated Button Prefab Addlistener is triggered clicking ANYwhere...

I have been looking for a solution for this but con't seem to find a specific solution so here goes...theres a lot of 'similar' situations...but I can't seem to fix this one.

I have created a button prefab that I instantiate in the world and set the parent to where it needs to be (I am using a scrollrect for example)...the position and everything works fine apart from the fact that I can click ANYWHERE on the screen to trigger the addlistener event rather than just on the button.

All the canvas objects and children have a scale of 1,1,1. When I debug which button is being clicked by name it comes up as the correct name, even though I'm not clicking ON the button.

I attempted moving all the parents of the button to be smaller to see if the hitzone was on those, but that didn't seem to make any difference.

I use invoke to set the button up in Start() as I need to load text first and place the button after the textfield.

Any help would be appreciated!

Invoke("LoadButton", 1);

Code (CSharp):

1.    
2.  
3. void LoadButton() {
4.     RollButton("test", "Investigation", 1, 1);
5.     }
6.  
7. public void RollButton(string buttonName, string rollType, int currentPage, int currentDecision) {
8.  
9.     // Get textfield parent scale information
10.     float scale = worldObjects.TXT_Page_0.rectTransform.localScale.y * worldObjects.TXT_Page_0.rectTransform.sizeDelta.y;
11.     worldObjects.canvasParent.GetComponent<RectTransform>().sizeDelta = new Vector2(8, scale + 3);
12.  
13.     // Get textfield positioning information for button position
14.     Vector3[] worldCorners = new Vector3[4];
15.     worldObjects.TXT_Page_0.rectTransform.GetWorldCorners(worldCorners);
16.     float bottom1 = worldCorners[0].y;
17.  
18.     // Spawn New Button at bottom of text field
19.     newButton = Instantiate(worldObjects.buttonTest, new Vector3(0, bottom1, 0), Quaternion.identity);
20.     newButton.name = "test";
21.     newButton.GetComponentInChildren<TextMeshProUGUI>().text = "Roll for " + rollType;
22.     newButton.transform.SetParent(worldObjects.canvasParent.transform, true);
23.  
24.     // If button is clicked
25.     newButton.GetComponent<Button>().onClick.AddListener(() => OnButtonClick(newButton, buttonName, rollType, currentPage, currentDecision));
26.  
27.     float bottom2 = worldCorners[0].y;
28.     }
29.  
30. public void OnButtonClick(Button newButton, string buttonName, string rollType, int currentPage, int currentDecision) {
31.  
32.     Debug.Log(EventSystem.current.currentSelectedGameObject.name);
33.  
34.     Destroy(newButton.gameObject);
35.  
36.     int currentRoll = Random.Range(1, 21);
37.     Debug.Log(currentRoll);
38.  
39.     if (newButton.name == "test") {
40.         if (currentRoll >= 10) {
41.         worldObjects.TXT_Page_0.text = worldObjects.TXT_Page_0.text + "<br><br> He looks around the room to find everything!";
42.         } else {
43.         worldObjects.TXT_Page_0.text = worldObjects.TXT_Page_0.text + "<br><br> He looks around the room to find nothing!";
44.         }
45.     }
46.     }