Transform Vector doesn't work for unlit materials on Open GL ES 2

why Transform Vector doesn’t work for unlit materials on OpenGL ES 2?

My material setup looks like this:

and Shading Model set for Unlit. In this case TransformVector returns 0… When I change shading model to Default Lit it works good… When I run this material in Shader Model or Metal in Unlit it also works good… So the only case when it doesn’t work is Unlit on GLES 2…

I don’t know if it’s a bug or optimization…

Anyone could explain this issue?

Same here, on 4.12.5. Totally clueless.