@Hal_Al wroteAmeliesUncle said "Just because there is personal use does not necessarily mean that you can't claim a loss".
Do you have a reference for that?
The personal use is likely making it non-passive, which MIGHT allow a loss:
The following aren’t passive activities ... The rental of a dwelling unit that you also used for personal purposes during the year for more than the greater of 14 days or 10% of the number of days during the year that the home was rented at a fair rental.
https://www.irs.gov/publications/p925#en_US_2021_publink[phone number removed]
But then the "Vacation Home" rules set in which may not allow the loss. But if the rental-only expenses (advertising, commissions, management fees and "other expenses") exceed income, then a loss would be allowed.
I don't know the specifics of the OP's situation (or what you entered on your test tax return), so maybe my comments above don't apply to your specific situation. But in prior years, TurboTax did that part correctly.
