State tax filing

Quick question regarding "Therefore, if you are a non-resident of MD who never physically worked in MD, your work income is not MD-sourced - and therefore not taxable by MD."

 

Where I'm having touble is with the bit on the attachment you sent that also says "Compensation paid to a Maryland nonresidentwho is teleworking in Maryland is Maryland-sourced income, and therefore, subject to
withholding."

 

I do my work remotely in NY, so perhaps that does mean MD considers this Maryland Sourced income?  The problem is that NY is also considering this NY sourced income.