Medical portion of TurboTax questionnaire was definitely a pain-point for me, too (downloaded desktop software on 4/4/25; made multiple update requests to ensure I had the latest). Seems to be the same problem addressed by OP.
From what I can determine, the problem emanates from the screen asking about meeting the threshold for medical expenses. If you respond "No", but then later want to adjust that response, there's no pathway in the interview process available for returning to and revising the response to that question. It merely walks you through a few previously answered questions, then proceeds to the "Thanks, we got all your Medical Expense info ..." screen response that other users have been encountering.
My only workaround? Restarting the whole return - basically a wasted Saturday afternoon. (I like the option, but I generally avoid making manual entries/overrides to the form.) I also had a few other disappointments with the questionnaire flow that I won't address here. TurboTax user for 25+ years.
