Why did a bond sale record and then show a negative market value?

dwatsonpt

R53.32 Windows. Bonds that were recently sold, now show as negative amounts in the holdings window. These same bonds were bought at various times in the past, and recorded as Bonds Bought transaction. Bonds Sold transactions were the sale. Same number of shares in both, but now it shows that I have a negative amount in shares and market value. I tried to change the transaction types in both to a stock buy and sell, but it would not save that way. It just reverted and kept to Bonds Bought and Sold. Not sure why this showed up but the bonds sold all on 1-11-24. Any help would be appreciated.