Thanks so much @lucyvcarr for your post. I just tried e-filing the state and federal separately and as you noted, my federal also went through fine without the state. Even with the "unsupported" 8453-PE included. My state (NY) still fails just like yours with the same issue.
At least that's half way there. I'll wait a few days and try submitting the business state (NY) return to see if they fixes the issue. Thanks again for the amount of time you spent to get us half way there!
