diff --git a/src/backend/worksheet/plots/cartesian/CartesianPlot.h b/src/backend/worksheet/plots/cartesian/CartesianPlot.h
--- a/src/backend/worksheet/plots/cartesian/CartesianPlot.h
+++ b/src/backend/worksheet/plots/cartesian/CartesianPlot.h
@@ -250,6 +250,7 @@
 	void updateLegend();
 	void childAdded(const AbstractAspect*);
 	void childRemoved(const AbstractAspect* parent, const AbstractAspect* before, const AbstractAspect* child);
+	void childHovered();
 
 	void xDataChanged();
 	void yDataChanged();
diff --git a/src/backend/worksheet/plots/cartesian/CartesianPlot.cpp b/src/backend/worksheet/plots/cartesian/CartesianPlot.cpp
--- a/src/backend/worksheet/plots/cartesian/CartesianPlot.cpp
+++ b/src/backend/worksheet/plots/cartesian/CartesianPlot.cpp
@@ -1390,6 +1390,12 @@
 
 			updateLegend();
 		}
+		// must be done, because the hover for the curves is done in this class
+		// and they must be unhovered, if another child is selected
+		const WorksheetElement* element = dynamic_cast<const WorksheetElement*>(child);
+		if (element)
+			connect(element, &WorksheetElement::hovered,
+					this, &CartesianPlot::childHovered);
 	}
 
 	if (!isLoading()) {
@@ -1458,6 +1464,25 @@
 	}
 }
 
+/*!
+ * \brief CartesianPlot::childHovered
+ * Unhover all curves, when another child was hovered. This unhover must be done here,
+ * because the hover of the curves is handled from the CartesianPlot it self (see hoverMoveEvent)
+ */
+void CartesianPlot::childHovered() {
+	Q_D(CartesianPlot);
+	bool curveSender = dynamic_cast<XYCurve*>(QObject::sender()) != nullptr;
+	if (!d->isSelected()) {
+		if (d->m_hovered)
+			d->m_hovered = false;
+		d->update();
+	}
+	if (!curveSender) {
+		for (auto curve: children<XYCurve>())
+			curve->setHover(false);
+	}
+}
+
 void CartesianPlot::updateLegend() {
 	if (m_legend)
 		m_legend->retransform();
@@ -2684,6 +2709,9 @@
 			update();
         } else if (mouseMode == CartesianPlot::MouseMode::SelectionMode) {
 			// hover the nearest curve to the mousepointer
+			// this must be done here, because there exist no ignore
+			// like for the mousePressEvent, so to check all curves, this
+			// must be done here
 			bool curve_hovered = false;
 			QVector<XYCurve*> curves = q->children<XYCurve>();
 			for (int i=curves.count() - 1; i >= 0; i--){ // because the last curve is above the other curves