Did the rental show a profit last year? If so, it is likely TurboTax incorrectly denied the deduction last year, so you would not have a carryover to this year (you would need to amend last year's return to claim it).
As a side note, the error message about it not being commercial property is outdated because it is based on law from 2017 and earlier. The fact it has been allowable for residential property since 2018 doesn't give me much confidence in the reliability of the program.
