Object validation rule for special characters in Position Name

Summary:

Customer: Mayo Foundation For Medical Education and Research

Approved Use Case: 20

We would like to use auto complete to ensure that position names do not include any special characters. Unfortunately, we are getting an unusual error message with our rule. Any thoughts on what is causing this error and/or how we can update the rule logic?

Content (please ensure you mask any confidential information):

Receiving the following error message instead of the expected error message when attempting to move out of the Position Details section of Request A New Position.

Code Snippet (add any code snippets that support your topic, if applicable):