Part-year Resident in NY and IL but W2 shows whole income under NY
I moved from NY to IL in April 2023 but am working for the same company (NY based, with a location in IL). My W2 shows a portion of my total income earned in IL in Box 16, and the amount shown there makes sense based on when I moved. However, for NY, my entire gross income is listed. Is this an error that I need corrected by my employer? I'm confused as to why the amount for NY isn't just the difference between my gross income and the amount earned in IL.