Symptoms
Assume that you use SQL Server 2017 Master Data Services (MDS) Add-in for Excel. When you use the Excel Add-in Attribute Search to select data from long drop-down list, you may notice that the feature does not work. This issue occurs because the MDS has the Display Format set to "Name {Code}" and the selected value will be inserted with the format "Code {Name}".
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This issue is fixed in the following cumulative update for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
References
Learn about the terminology that Microsoft uses to describe software updates.