Are you using 2106 to get mileage to Schedule C. The problem may lie there.
If you can't work it out contact Support https://proconnect.intuit.com/support/en-us/help-article/taxation/contact-lacerte-help/L4c6BR3CZ_US_...
You have clicked a link to a site outside of the Intuit Accountants Community. By clicking "Continue", you will leave the community and be taken to that site instead.