203x must be filed by mail:You cannot eFile a NY Tax Amendment anywhere, except mail it in.Only Option: Complete, signIT Form 201-X- orIT 203-X(Part Year Reside...

I agree - there is a bug here... I filed IT-203, along with NJ1040 and US1040. I then needed to amend my return, Turbotax generated US 1040x and efiled, generat...