Sorry I don't use PS, so can't speak to the critical diagnostic you got.  FWIW, PTO/Lacerte don't give any critical diagnostic so long as the taxpayer's dates are entered.  You may like to check off and ignore the diagnostic.

In your case, the presumption is that the couple is electing to file MFJ even though the default VA position where one is a resident and the other NR is MFS, irrespective of whether federal is MFJ.  If MFS is used, be mindful that VA respects community property law from what I understand, assuming the couple's domicile is TX.