waterfall chart get selected member does not work properly?

Hi,

I designed an app that contains a waterfall chart. It seems
as if the WATERFALL.getSelectedMember(„CHARACTERISTICS“) script does not return
the selected member, but always the first member (I am using the Horizontal
Waterfall Chart but the same is true for the other waterfall charts). Obviously, I added the command in the on Select Event. Any
similar experience with that?

Thanks in advance,

Julian