zero data row suppression with CustomMemberList member filter?

Hi, we have a custom member filter in a cube view (i.e. E#Root.CustomMemberList(BRName=X, MemberListName=Y)), and it seems to disable row suppression.

In other words, the cube view brings back all filtered members in rows, regardless if there is data, even when the row suppression settings are set.

Has anyone else experienced this and can confirm/deny? And if so, is there a way around it? We based architecture on CustomMemberList following the same rules as any other member filter.

Jon