problem populating relationship field from import

In a new QB app we created, we have a table "Phishing Attempts" where we want to create records by importing a spreadsheet. We also have a table "Targeted Users" which has employee info such as Employee ID, email, position, etc.

Phishing Attempts table has a relationship with Targeted Users table, where we have the Employee ID field from Targeted Users included in the Phishing Attempts record form along with lookup fields that are automatically pulled from Targeted Users table.

The spreadsheet we want to import to create new records in Phishing Attempts table includes an employee ID number. When we import the spreadsheet, we select the target field Employee ID in the Phishing Attempts form.

The problem is that the Employee ID field in the Phishing Attempts form is not populating when we do the import. The ID number in the spreadsheet matches exactly what is in Employee ID in Targeted Users table.

Is this not working because the Employee ID field in Phishing Attempts is pulling from Targeted Users table? Is there a way to get this to work?