OnSelect and OnPointerEnter work in one script but not another on the same object

I have a series of buttons that when hovered over are supposed to deactivate a block of text in the same panel. I used to have different script attached to each of my buttons. Below is one such script.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.EventSystems;
 
 public class Challenge1Hover : MonoBehaviour, ISelectHandler, IDeselectHandler, IPointerEnterHandler, IPointerExitHandler
 {
     public GameObject challenge1Description;
 
     public void OnSelect(BaseEventData eventData)
     {
         challenge1Description.SetActive(true);
         Debug.Log("challenge 1 selected");
     }
 
     public void OnDeselect(BaseEventData eventData)
     {
         challenge1Description.SetActive(false);
         Debug.Log("challenge 1 deselected");
     }
 
     public void OnPointerEnter(PointerEventData pointerEventData)
     {
         challenge1Description.SetActive(true);
         Debug.Log("challenge 1 hovered over");
     }
 
     //Detect when Cursor leaves the GameObject
     public void OnPointerExit(PointerEventData pointerEventData)
     {
         challenge1Description.SetActive(false);
         Debug.Log("challenge 1 unhovered over");
     }
 }

These worked fine, but I wanted to consolidate these into one script that I could attach to all of my buttons, so I made this one and attached it to each of them:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 using UnityEngine.EventSystems;
 using System.Linq;
 
 public class ChallengeButtonHover : MonoBehaviour
 {
     public GameObject challengeDescription;
     List<string> objectName;
     private string challengeNumber;
 
     void Awake()
     {
         objectName = gameObject.name.Split(' ').ToList();
         challengeNumber = objectName[1];
         challengeDescription = GameObject.Find("Challenge " + challengeNumber + " Description");
         challengeDescription.SetActive(false);
         Debug.Log("My description is for challenge " + challengeNumber);
     }
 
     public void OnSelect(BaseEventData eventData)
     {
         challengeDescription.SetActive(true);
         Debug.Log("Challenge " + challengeNumber + " selected");
     }
 
     public void OnDeselect(BaseEventData eventData)
     {
         challengeDescription.SetActive(false);
         Debug.Log("Challenge " + challengeNumber + " deselected");
     }
 
     //Detect when Cursor enters the GameObject
     public void OnPointerEnter(PointerEventData pointerEventData)
     {
         challengeDescription.SetActive(true);
         Debug.Log("Challenge " + challengeNumber + " hovered over");
     }
 
     //Detect when Cursor leaves the GameObject
     public void OnPointerExit(PointerEventData pointerEventData)
     {
         challengeDescription.SetActive(false);
         Debug.Log("Challenge " + challengeNumber + " unhovered over");
     }
 }

This second second script does not work. I get no errors at all, and in the inspector the description they are supposed to state-toggle are correctly referenced. I have no idea why this shouldn't work.