I had been trying to do this with TurboTax Desktop for Mac that had been previously installed. Monday, I called Intuit, and someone did a screen-share to try to help. I downloaded TT Desktop for PC; it seems to be a special version for amending 2023 returns (not the regular version like I had used last year). However, this version also insisted on getting the state versions, and it crashed 3 times trying to do so. Finally, we gave up, and the Intuit rep showed me how to download the PDF of my amended return so I could just mail it in.
