Yes. I input everything correctly.
I found a thread earlier today from a couple of years ago that looks like it might have been a similar problem. Implication is TT cannot handle partial year mortgages correctly at least when mortgage interest needs to be capped. It seems I have to do everything manually, or it carries over the incorrect number.
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/mortgage-interest-deduction-comp...
I'm going to try the above approach later, and see if it works without forcing me to do overrides in TT after the fact. I hope this is the correct resolution.
Thanks.
