Form B loss Gain

My US Discounted Treasury Nt investment matured in 2024. Form B from brokerage an $3300 amount in loss/gain.

I imported documents into Turbotax from my Brokerage. 

turbotax shows correctly the discounted purchase and the gross amount after maturing of Treasury which is  a gain but when all done turbotax shows gain/loss  as Zero

although in the form B workout form/sheets turbotax shows 

gain /loss $3300 and in next column of adjustment amount shows -3300 ( negative)

 

i am not an expert