SingleTime dimension not showing members in excel smartview

Summary:

SingleTime dimension is enabled in FCCS.

When used in data form as dynamic user variable, it shows the member as selection, but when opening the same form in excel smart, it doesn't show member list.

Content (required):

in FCCS data form, "Enable Dynamic user variable" is ticked.

When selecting in FCCS data form, it shows selection as below :

In excel smart view, it doesn't show all the members in the selection

Is there any setup, that needs to be done for smartview.

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

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