Hello there, @RSActg.
You may need to verify and rebuild the data in QuickBooks Desktop (QBDT) to bring back the employee information. Verifying and rebuilding data in QBDT self-identifies and self-resolves the most commonly know data issues. I'm here to help guide you how.
To verify the data:
To rebuild the data:
For additional reference, you may check this article: Verify and Rebuild Data in QuickBooks Desktop.
Please know that I'm always here to help you if you have any other QuickBooks questions. Have a great day ahead!