There will raise a error if use Texel Size Node inside subgraph.

Like in the file I attached. If I try use Texel size node inside a subgraph it will raise a error that XXX_TexelSize undeclared.
But if i use this node in a shader graph it will works normal.

Seems that the method of XXX_TexelSize will only works if XXX is declared in the shader. But in subgraph ( which is actually a function), the XXX is the param name of function so that XXX is NOT a shader declared variable which means XXX_TexelSize is not existence.
I understand why this node not works inside a subgraph now. But I cann’t figure out the way to fix this.

There is nothing that the user can do to fix it other than not using that node in a Sub Graph, it’s a known issue in our bug log that we’re working on addressing. c: