LinkedIn Member Company Data filtered for one Campaign Group Name

Hi,

I'm trying to pull through Member Company data into the Data Studio but I only want to show the data for one of the Campaign Groups. Currently when I create a table or drop down list and I add a filter to only include the Campaign Group, it shows a data set configuration error message. If I remove the filter then I do see the Company Names across all the Campaign Groups.

Please could you advise?

Thanks