How to select an item from a dropdown box with TruClient?

With Loadrunner 12.50 / TrueClient I am trying to select a simple entry from a dropdown box, but it is not working. The dropdown box looks as follows

When clicking on the down arrow the dropdown opens and I see the possibilities:

I want to select the item "Dokumenten-Austausch" so it looks like follows:

I have proceeded this way during the recording, but during the playback the link "Wann verwende ich welche Kategorie?" placed directly below the dropdown is selected! This is not what I want!

The currect step looks like follows:

Any idea how to fix this behavior in the step settings?