TL/DR: delete your state return and start it over.
I encountered this issue, AFTER PAYING to e-file my federal and two state returns, and none of these fixes worked for me. We did not even have IRC 125 on either W2 but I spent hours on the phone with a tax expert, who was scrolling these forums I had already read, and repeatedly suggesting all the solutions presented here that I had already tried that still didn't work. At one point, he asked if I would be okay just paper filing my return without resolving the issue, and I said no because I had PAID FOR E-FILING already. At another point, he had to call me back the next day after he looking into it further. Eventually, he suggested I delete my entire NYS (non-resident) return and start over. I did this and also had to delete and recreate my CT (resident) return, because one needs to do the non-resident return first. This did resolve the problem, it did not recur after I recreated both state returns. Perhaps Turbo Tax coincidentally resolved the software glitch in the interim. The tax expert I spoke with was very pleasant to deal with over this completely ridiculous problem. Next year, I'm going elsewhere.
