BlueBerry uses an internal view (org.blueberry.ui.internal.introview) to manage the intro which is shown on first startup. It is part of the exclude list of views not to be shown in the show view list and icon bar. However, this exclude list is no longer accessible from the view manager, which used to abide by it (see here).
Thus it is seen as an entry in the view manager, but clicking it will result in a crash in release mode and an error in debug mode.