Does Autocomplete behaves differently if DFF is Global vs Context Segment?

Summary:

We are trying to default one of the values from the DFF's Global Segment (Attribute 2) depending on the Business Unit selected on the Worker assignment.

We followed the instructions mentioned in the article below: Created a Field Modification Type Rule and the DFF Display Type is Drop-down list. It seems like the autocomplete rule does not recognize the list of values from the DFF. The Warning message works though.

Content (please ensure you mask any confidential information):

Rule

DFF

Value Set

Version (include the version you are using, if applicable):

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