I reached out to the State of Maryland (by e-mail) and received a call from Rita.

She said Maryland has changed something since last year regarding e-file of corporate return.  I needed to “unlink” the MD e-file return from the federal return.

Go into Federal Information Worksheet.  At very bottom of Electronic Filing Information Area select QuickZoom to Electronic Filing Worksheet.  On this worksheet check the box in Part 1 – Check this box to force state only filing for all states selected to be filed electronically.

Save and retransmit the State return.