GraphicsBuffer, Mesh vertices and Compute shaders

Yes, I have a rather primitive shader that only displaces vertices from the texture. In the shader I indicated the filling of the buffer after displacement (visually, the shader works). But in the code, in the previous post, I'm not getting information from the shader, the buffer is returned empty. It's on the HDRP.

 

In RenderDoc I see that in my case information is copied from an empty buffer "SSGetData-Standing-36036" to EID (Event) 4220. Why is this happening? The name of my shader is "New Shader", the rendering can be seen on EID (Event) 2798.
You can donwolad the capture file in link https://drive.google.com/file/d/1f5seu4tMRQl5Tbo_9zo8yaRTk5Fa5t9F/view?usp=sharing.
Through in RenderDoc, I cannot also see what happens in the vertex shader itself, it only displays information:

Code (CSharp):

1. OutputStruct EditedShaderVS(in InputStruct IN)
2. {
3.     OutputStruct OUT = (OutputStruct)0;
4.     // ...
5.     return OUT;
6. }

Mb because I can only choose the type of compilation for HLSL Built-in.

 

Is there a way to use a GraphicsBuffer to render colorized vector points? ( buffer of Vectors and buffer of Colors)?

I am currently using the Computer Shader, but it does some very weird stuff when UI enters into the scene. Example in the video. (VR Single Pass). Have tried it on all UI , if the canvas has nothing on it, it wont do it. Cant figure out what is going on, but wanted to see if using this method might fix it.