For most states, you would need to file a non-resident return to show that you owed no tax to that state.
However, as you note, Virginia has a special form that allows you to avoid filing the complete return.
It looks like you have done what you were supposed to have done.
I would imagine that this is being held up by the bane of all tax processing everywhere - paper forms.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"