Shader graph, fragment and vertex can't use same variant.

204326-2023131.png

Like this, if you link a variant to position in vertex, you can’t link it to base color in fragment.
Is it a bug? Or I misunderstand it?

Now I can answer that question by myself.
If you want to transmit data between vertex and fragment, you should create a custom interpolator in vertex, just like a real shader.