Loop for When Did You Start Using this home office

I'm using Turbotax premium and trying to enter a home office deduction for self-employed business that started a few years ago. There is a question asking 'When did you start using..." and I entered 01/01/2023 to get full year's deduction. Error message pops up saying "This date must be on or after the business start date". Any tip on where to edit business start date? None of the questions prior to that asked me for this information, and if it is populated from earlier turbotax return, I can't see how Intuit thinks it is later than 1/1/23.