The same thing is happening to us (using TurboTax online). Since it's the online software, I don't think the issue could be fixed by a software update. All instructions I can find state that this expense (mortgage interest for a rental property for which we had no personal use) should be part of the Schedule E and not the Schedule A. But unfortunately, TurboTax online is not giving us the option to enter in the Schedule E, but is instead of routing that mortgage interest to the Schedule A.
