Can anyone help me with my 2D endless runner overlapping platforms?

Hello! I'm a new Unity user, and a C# noob. I'm currently making a 2D endless runner in Unity and my platforms that I'm generating using object pools seem to want to overlap and bunch up no matter what I do.

In the picture above, the platforms should be at variable heights, but match up at their ends.

Below, I will post my code for the platform generator. It is sorta long, but I think the problem is near the end after my heightChange stuff. I really just need fresh eyes on this, as I have been frustrated for several days. Thanks in advance for any tips.

  using UnityEngine;
  using System.Collections;
  
  public class PlatformGenerator : MonoBehaviour
  {
      public GameObject platform;
      public GameObject[] platforms;
      public Transform generationPoint;
      public float distanceBetweenMin;
      public float distanceBetweenMax;
      public ObjectPooler[] objectPools;
      public Transform maxHeightPoint;
      public float maxHeightChange;
  
      private float distanceBetween;
      private float platformLength;
      private float minHeight;
      private float maxHeight;
      private float heightChange;
      private int platformSelector;
      private float[] platformLengths;
  
  
  
      // Use this for initialization
      void Start ()
      {
          platformLength = platform.GetComponent<BoxCollider2D>().size.x;
          platformLengths = new float[objectPools.Length];
  
          for(int i = 0; i < objectPools.Length; i++)
          {
              platformLengths[i] = objectPools[i].pooledObject.GetComponent<BoxCollider2D>().size.x;
          }
  
          minHeight = transform.position.y;
          maxHeight = maxHeightPoint.position.y;
      
      }
      
      // Update is called once per frame
      void Update ()
      {
          if(transform.position.x < generationPoint.position.x)
          {
              distanceBetween = Random.Range(distanceBetweenMin, distanceBetweenMax);
              platformSelector = Random.Range(0, objectPools.Length);
  
              heightChange = transform.position.y + Random.Range(maxHeightChange, -maxHeightChange);
  
              if(heightChange > maxHeight)
              {
                  heightChange = maxHeight;
              }else if(heightChange < minHeight)
              {
                  heightChange = minHeight;
              }
  
  
              transform.position = new Vector3(transform.position.x + platformLengths[platformSelector] + distanceBetween, heightChange, 0);
  
              GameObject newPlatform = objectPools[platformSelector].GetPooledObject();
  
              newPlatform.transform.position = transform.position;
              newPlatform.transform.rotation = transform.rotation;
              newPlatform.SetActive(true);
  
              transform.position = new Vector3(transform.position.x + platformLengths[platformSelector], transform.position.y, 0);
          }
      }
  }