Thank you for posting in the Community. I'd be happy to help share some information about e-filing the 1099 form.
To make sure I'm on the same page, is the contract labor an expense account that you use when paying that vendor? If so, it doesn't list the contractor on the Vendor list?
If so, let me show you some ways to make sure the contractor is included when you e-file the 1099 form. To start, let's make sure the Track payments for 1099 box is marked on the Vendor's profile.
On the left pane, select Expenses.
At the top left, select the Vendors tab.
Find and select the name of the vendor.
At the top right, click the Edit button.
Make sure the Track payments for 1099 is checked.
After that, if you paid your contractors with a credit card, debit card, gift card or PayPal, you may need to edit them and use a different payment type. Only those contractors you paid above the threshold (usually $600) by cash, check, EFT, ACH, and direct deposit payments get 1099.
Once done, try to recreate the 1099 form to see if the contractor shows on the list. I've also attached an article for additional reference.