selecting specific index number of UDA does not work

Summary:

I am using the following function to select only 1st value of the UDA.

MemberProperty("Group","UDA", (1))

But the report gives all the UDA comma separated.

Content (please ensure you mask any confidential information):

MemberProperty("Group","UDA", (1))

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

Version

Service: Enterprise Performance Management Enterprise Cloud
Business Process: Planning
Version: 24.07.52

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

MemberProperty("Group","UDA", (1))