Hello, Can anyone please help me with this Efile non-resident state return question:

I have a client who lives in VA for the entire 2022 but one of his W-2s has Maryland withholding. So I want to Efile his state tax returns as a VA resident and MD Non-resident. But after I input all client's tax documents, I received the following three diagnostics which prohibit me from Efile the client's MD state return. I had a similar situation before when I use TurboTax and HR block, they all can Efile VA residents, and MD Non-residents at the same time. Why can't Proconnect software do that? I wasn't sure if I missed anything with Proconnect inputs, or if it just already has this paper file issue very long with Proconnect.

I have these three Proconnect Diagnostics:

(1) Income from Maryland sources is zero. In order to prevent the tax from being computed for this return, the checkbox labeled "Not required to file Maryland return", in the "Maryland Part-Year/Nonresident Info" input screen should be check-marked.

Question Here:  how do I know if I should check the box "Not required to file MD return"?

(2) Nonresident returns that had taxes withheld in error are not currently supported for electronic filing in the tax program. Please file this return on paper.

(3) Due to a reciprocal agreement with Virginia, wages, salaries, tips etc., have been excluded from the Maryland return.

Also, If I have to paper file this client's MD non-resident return, Proconnect produces an MD Form 505, but the MD tax department requires  "Additionally Form505NR (MD tax computation) included".  How can I get that?

Any thoughts or advice would be very appreciated!

Thanks!