Question UI cutoff shader not resetting cutoff on Transform change

Hello everyone,
I am using a UI cutoff shader from here:
https://medium.com/@cuilongchang/un...i-object-behind-a-transparent-ui-2700c12372c1

Here is a video about what is happening.:

I am updating the transform from inspector in the video. But as you can see previous cutoffs are not removing. I want to remove previous cutoffs and only keep the cutoff based on current transform.

This is the shader for cutoff:

Code (CSharp):

1. Shader "Custom/TransparentCoverShader"
2. {
3.     Properties
4.     {
5.         _MainTex("Base (RGB) Alpha (A)", 2D) = "white" {}
6.         _Cutoff("Base Alpha cutoff", Range(0,.9)) = .5
7.     }
8.  
9.     SubShader
10.     {
11.         Tags{ "Queue" = "Transparent+1" }
12.         Offset 0, -1
13.         ColorMask 0
14.         ZWrite On
15.  
16.         Pass
17.         {
18.             AlphaTest Greater[_Cutoff]
19.  
20.             SetTexture[_MainTex]
21.             {
22.                 combine texture * primary, texture
23.             }
24.         }
25.     }
26. }