Just got off the phone with TT support (58 minutes, three different support staff). Long story short: they recommend waiting until March 1st.
One support rep didn't seem aware of the issue, and after a while also sent me a link to the incorrect 'Solved' thread you first linked, that suggests combining both 1098s into one. I told him that was incorrect, and was eventually passed onto someone from the Tax department.
From Tax, I spoke with Shervetta, who said this seems like the state forms are not done yet (either because the states haven't finalized them or TT haven't finished processing). She said usually these are done by March 1st, so we should check back then. She suggested that in her opinion, there's no way these forms won't be fixed, it's just a matter of waiting a little more. If not, call them back. If you pay for TT Live (I don't) you can ask to speak with a CPA to get more detailed advice.
I strongly urged them to escalate this, have some experts chime in on this thread and stop wasting everyone's time who hits this issue, but I don't believe anything will change (and here we all are!).
