1099-R Pension wipes out my Schedule C business losses in TT Business and Home 2023.

My wife and I have 15K of Schedule C losses ( new business no income in 2022).   We are retired and have income from SS, IRA distributions, and Pensions.   I show a 10k refund until I enter my last 1099-R for my pension.   As soon as I enter it the refund goes down to 3k.  I don't understand.  As a test I created another return that had no business income or loss, just the 1099s.   The refund is also 3K.   Why would the business income disappear?  I updated to Home and Business last week thinking that it would make things easier.  Any help would be appreciated.