South Carolina Amended Tax Return Rejected

After I filed 2024 taxes and my federal and state tax returns were accepted, my spouse received another W-2 from one of her short-term employment that we completely forgot about. It was about $2300. Then I added that new W-2 to my 2024 tax return and filed the amended tax return via e-filing. Federal, NY, and NJ have accepted them; however, South Carolina rejected them. There is no visible reason code anywhere, and I'm assuming that is because SC does not accept amended tax returns over e-filing. And I have no idea how to file an amended tax return for SC by paper...

Please share any data points that you may have. Thank you so much!