QCW has 2 separate specification codes for Vendor/Check information. If you open your check specification using the Check Designer, and click on the Vendor fields you are using, you will likely see that the spec code you are using is from the "Vendor information" file. Since your Vendor is not a regular one that is set up in your QC Vendor list, it will not print out when using this spec code.

Click on the "Spec List" button on the Designer's toolbar to view the list. You should be using the "Check - Name" and address from the "Check information" file, then you will get 1-time Vendor information as well as your Vendors on file, as they are both pulled from the Check information file.

Replace the existing fields on your check spec with these ones, & save your changes and your checks should print the correct information.