EC UI is displaying the Option ID from a picklist instead of the Label

[CharlotteCork]

Hello everyone,

In our EC Address portlet, we have a field for 'County'. The County field is linked to a picklist called 'GBR_COUNTY'.  

One of our users can see the Option ID on employees' Address UI instead of the label.

For example, we have a county with the Label 'Greater London' and the Option ID for that is '1060.

Our user is seeing '1060' in the county field on employees' Address UI's.

I have checked Manage Business Configuration and the field is linked to the correct picklist.

I found the SAP KBA below, but the causes of the issue do not apply to us, because we have not migrated or changed the picklist.  

2705217 - Field displaying numerical IDs instead of Picklist labels - Employee Central (sap.com) 

The Label and Option ID in our picklist are shown below:

Only one user has reported this issue.

They have sent us screenshots of the Option ID on the UI. However, when we proxy in as the user, we see the correct label and not the Option ID.

Has anyone experienced this issue? Do you know what could be causing the display of the picklist Option ID instead of the Label (and only for some users)?

Thank you for any advice, much appreciated.

Kind regards