I was able to workaround the issue by doing the following:
1) Restart TurboTax and apply software updates
2) Delete all mortgage interest entries (via Step-by-Step)
3) Save file, exit TurboTax, start TurboTax
4) Re-input all mortgage interest entries (via Step-by-Step)
5) Verified all schedules were computed accurately and flowed up to the 1040 correctly (1040, Sch A, Home Int Worksheet, Deductible Mortgage Interest Worksheet)
