I have not seen other reports of mishandling of real estate losses being an issue in the 2018 software, maybe you can elaborate on the specifics of one of the returns in question and someone can help you see if this was a programming issue or perhaps data entry error or misunderstanding on your part about how rental losses work when the $25K limit comes into play.

DMS does a terrible job of preparing tax returns. Try one of the Intuit Tax prep products next time. https://accountants-community.intuit.com/articles/1859737-comparing-lacerte-and-proseries-and-procon...

MY software limits it correctly, unless PEBCAK occurs and "real estate pro" gets checked.