Resolved Unity Transparent Material Issue

I have this issue (Issue Image 1.1, Issue Image 1.2, Material Settings) and I dont know what causing the problem. I made Surface Type = Transparent because need to change opacity of object.

I also tried it with shader graph, I didn't have much hope so I did an extremely quick search on the internet and created a shader graph like this.

Custom Shader Graph, Shader Graph Result

Note: I made this transparent material and added the code on lit.shader
[ToggleUI] _CastShadows("Cast Shadows", Float) = 1.0
that's why you don't see the "cast shadows" part on your project, this is not causing the problem I think. nothing changed at all while I tested it with and without it.

Note2: I'm Using URP Renderer.

I need to fix this asap, every effort will appreciated.

 

Solved by dithering in shader graph. here is the solution for anyone interested.