Shadow for links and nodes

[sbimo007]

Hello,
I added a spotlight and a ground to my Graph scene, but can't see shadows for links ans nodes
i'm wondering if shadows works for Graph elements, because a added a Mesh Geometry to the scene (with network, spotlight and a ground) and get shodows for this Mesh, but not for network elements

I'm getting warnings in console,
GL_INVALID_VALUE: Texture dimensions must all be greater than zero
warning counts is equal to nodes count in my network,

any help
many thanks

[vasturiano]

@sbimo007 could you make a simple example of your case, on https://codesandbox.io/ for instance?