I mean, it is resolved by finding a way around the issue by simply skipping the screen that it was getting stuck on. My taxes are filed/submitted and accepted, and there were no errors that I could see. But the core issue of being able to get through the final review process without getting stuck on that screen was never fully resolved, so this issue could pop up again in future years.
I had already called TurboTax support before I even posted this, it was the very first thing I did after hitting a dead-end troubleshooting it on my own. The support was not helpful at all, and basically just tried to politely get rid of me on the phone rather than actually solve anything - first by trying to transfer me to someone for tax advice when I did not need any tax advice (I only needed technical support), and second by finally blaming the issue on a 3rd-party integration / TurboTax partner, and claiming that TurboTax had dropped support for them (even though they were still perfectly usable and a viable option inside of TurboTax), which was not true, but did succeed in getting me off of the phone with them.
