Subcontractor summary sometime may not have correctly recalculated for all subbies prices.
Fig1. Subcontractor Summary with Zero Total
In the Subbie trade breakup for the subbie with incorrect total, you will notice that not all the Subbie items are priced.
Fig2. Subbie Item Unpriced
Double click on the unpriced item to set a value.
Fig3. Subbie Item Priced
Now go back to the Subcontractor summary page, you will see the Total will be displayed correctly.
Fig4. Subcontractor Summary with Correct Total