White matte of alpha texture Not Removed

Hi there!

I update Unity to 2021.2.2f1 already
and I build my game to iPhone for test
and this is what I got

this is from iPhone 12 Pro Max everything seem to be Ok...


But this is from iPhone 13 Pro Max


What happen?
I also enabled Remove Matte (PSD) already But why still have a white edge of every sprite!!!
and yes I used .PSD image But why before 2021.2.2f there has no problem? and it only happen in iPhone13 Pro Max!!!

anyone used to have this problem?

Thanks!!!

 

Oh I just see this sprite has been render by my custom shader
if default shader from Unity is ok

this is my sprite shader Why this is just happen in Unity 2021.2.2f and iPhone 13 Pro Max?

Shader "2D/Sprite"{
Properties{
_Color ("Tint", Color) = (0, 0, 0, 1)
_MainTex ("Texture", 2D) = "black" {}
}
SubShader{
Tags{
"RenderType"="Sprite"
"Queue"="Transparent"
}
Blend SrcAlpha OneMinusSrcAlpha
ZWrite off
Cull off
Pass{
CGPROGRAM
#include "UnityCG.cginc"
#pragma vertex vert
#pragma fragment frag
sampler2D _MainTex;
float4 _MainTex_ST;
struct appdata{
float4 vertex : POSITION;
float2 uv : TEXCOORD0;
fixed4 color : COLOR;
};
struct v2f{
float4 position : SV_POSITION;
float2 uv : TEXCOORD0;
fixed4 color : COLOR;
};
v2f vert(appdata v){
v2f o;
o.position = UnityObjectToClipPos(v.vertex);
o.uv = TRANSFORM_TEX(v.uv, _MainTex);
o.color = v.color;
return o;
}
float alphaTmp = 0;
fixed4 frag(v2f i) : SV_TARGET{
fixed4 colTexture = tex2D(_MainTex, i.uv);
alphaTmp = colTexture.a;
float blender = i.color.a;

colTexture = lerp(colTexture, colTexture,blender);
colTexture = lerp(colTexture, i.color,blender);
colTexture.a = alphaTmp;
return colTexture;
}
ENDCG
}
}
}