Hey NewVistaCorp,

Thank you for providing those screenshots.  At times in QuickBooks Desktop, customers' and vendors' profiles link can become broken.  For this situation, I would like you to create a new vendor profile and merge the vendors. Here is how: 

1. Go to Vendors, then click the Vendor Center.
2. Use the drop down and select New Vendor under New Vendor.
3. Add the same information from the previous vendor. For this to work, please ensure the information matches. After typing the vendor name add a letter or number. For example, A-1 Plating Company 1.
4. Save the information.
5. Once saving the new profile, right click the  vendor name and select Edit.
6. Remove the 1 from the name and save the changes.
7. You will get a warning message. "This name is already being used, Would you like to merge them?", select Yes to confirm.

Now that the profile would have been re-linked, go ahead and run the reports again. Let me know if you were able to see the first and last name from the customization. If the issue persist, it would be best to run a verify and rebuild to resolve any data issues and re-run the report. This article is very helpful with that.

Please keep me updated! If you ever have any questions or need clarification, I will be here! Take care for now.