Question Memory issue with UnityWebRequest

I am using UnityWebRequest to get textures from StreamingAssets and each new texture is overwriting a Texture2D object, basically replacing the old texture. The issue is, that with each download of a new texture my Texture memory is growing and especially on iOS, after 8-10 downloads the page reloads, there is no error tho, but I am assuming its an memory issue.
Each time this coroutine is called the profiler shows the textures count rising by 1 and memory rising by around 50mb.

Here is my code:

Code (CSharp):

1.     IEnumerator LoadTexture(int _id)
2.     {
3.         using (UnityWebRequest uwr = UnityWebRequestTexture.GetTexture(Application.streamingAssetsPath + "/" + _id.ToString() + ".jpeg"))
4.         {
5.             yield return uwr.SendWebRequest();
6.  
7.             if (uwr.isNetworkError || uwr.isHttpError)
8.             {
9.                 Debug.Log(uwr.error);
10.             }
11.             else
12.             {
13.                 smothTrans.mat.SetTexture("_tex", DownloadHandlerTexture.GetContent(uwr));
14.             }
15.         }      
16.     }

 

I was playing a bit with it and it seems that even if I dont assign the downloaded data to anything, simply by downloading data it fills up my memory, as if the uwr object is not overwritten but instead instantiated as a new object every time.
I did try to run the Dispose() on the uwr object right after the usage but it doesnt release my memory.

Is there any other way to remove the uwr data from my memory?