Employee Position field won't accept values selected from lookup table

Hi there,

We’re on 25R2 and trying to use the Employees page’s History tab to track employee Position, Start and End Dates, Termination Reason, etc.

For the Position field when I choose one of the available options it accepts it, but when I add a Start Date it throws and error about the Position field: 

“Error: An error occurred during processing of the field Job Title value Engraving Expo Error: Job Title 'Engraving Expo' cannot be found in the system.”

It’s not the biggest deal in the world, but we would like to use this page if there’s an easy fix. I’ve tried in both Modern and Classic UI, fwiw.

Thank you!

Jon