diff --git a/ChangeLog.txt b/ChangeLog.txt
index e97b8944a..0a2737930 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -3,6 +3,7 @@
 - Fix issue with Custom template.
 - Fix issue with tile font size.
 - [smart-pattern/valentina#171] System identifies two of the same curve.
+- [smart-pattern/valentina#170] Incorrect work with curves.
 
 # Valentina 0.7.50 February 14, 2022
 - Fix regression. Minimal seam allowance width is less than the point accuracy values.
diff --git a/src/libs/vgeometry/vspline_p.h b/src/libs/vgeometry/vspline_p.h
index 3c73ffb0e..dee666f75 100644
--- a/src/libs/vgeometry/vspline_p.h
+++ b/src/libs/vgeometry/vspline_p.h
@@ -204,7 +204,8 @@ VSplineData::~VSplineData()
 qreal VSplineData::GetL(const QPointF &p1, const QPointF &p4, qreal kCurve)
 {
     static const qreal angle = 90;
-    const qreal radius = QLineF(p1, p4).length()/M_SQRT2;
+    qreal length = VFuzzyComparePoints(p1, p4) ? accuracyPointOnLine*2 : QLineF(p1, p4).length();
+    const qreal radius = length/M_SQRT2;
     return kCurve * radius * 4 / 3 * qTan( angle * M_PI_4 / 180.0 );
 }
 
diff --git a/src/libs/vgeometry/vsplinepath.cpp b/src/libs/vgeometry/vsplinepath.cpp
index cbd8a2735..cbc19e7b1 100644
--- a/src/libs/vgeometry/vsplinepath.cpp
+++ b/src/libs/vgeometry/vsplinepath.cpp
@@ -207,11 +207,6 @@ VSplinePath::~VSplinePath()
  */
 void VSplinePath::append(const VSplinePoint &point)
 {
-    if (d->path.size() > 0 && static_cast<QPointF>(ConstLast(d->path).P()) == static_cast<QPointF>(point.P())) //-V807
-    {
-        return;
-    }
-
     d->path.append(point);
     CreateName();
 }
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp
index fd3a98030..1193e3b44 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp
@@ -234,6 +234,7 @@ void VToolEndLine::SetVisualization()
         visual->SetAngle(VAbstractApplication::VApp()->TrVars()
                          ->FormulaToUser(formulaAngle, VAbstractApplication::VApp()->Settings()->GetOsSeparator()));
         visual->setLineStyle(LineStyleToPenStyle(m_lineType));
+        visual->SetMode(Mode::Show);
         visual->RefreshGeometry();
     }
 }
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp
index 26ba4d215..6e1440658 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp
@@ -75,9 +75,11 @@ VToolLinePoint::VToolLinePoint(VAbstractPattern *doc, VContainer *data, const qu
     Q_ASSERT_X(basePointId != 0, Q_FUNC_INFO, "basePointId == 0"); //-V654 //-V712
     QPointF point1 = static_cast<QPointF>(*data->GeometricObject<VPointF>(basePointId));
     QPointF point2 = static_cast<QPointF>(*data->GeometricObject<VPointF>(id));
-    mainLine = new VScaledLine(QLineF(point1 - point2, QPointF()), this);
+    QLineF line(point1 - point2, QPointF());
+    mainLine = new VScaledLine(line, this);
     mainLine->SetBoldLine(false);
     mainLine->setFlag(QGraphicsItem::ItemStacksBehindParent, true);
+    mainLine->setVisible(not line.isNull());
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -107,7 +109,9 @@ void VToolLinePoint::RefreshGeometry()
     VToolSinglePoint::RefreshPointGeometry(*VDrawTool::data.GeometricObject<VPointF>(m_id));
     QPointF point = static_cast<QPointF>(*VDrawTool::data.GeometricObject<VPointF>(m_id));
     QPointF basePoint = static_cast<QPointF>(*VDrawTool::data.GeometricObject<VPointF>(basePointId));
-    mainLine->setLine(QLineF(basePoint - point, QPointF()));
+    QLineF line(basePoint - point, QPointF());
+    mainLine->setLine(line);
+    mainLine->setVisible(not line.isNull());
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/libs/vtools/visualization/line/vistoolendline.cpp b/src/libs/vtools/visualization/line/vistoolendline.cpp
index 959b36ef1..476e028ec 100644
--- a/src/libs/vtools/visualization/line/vistoolendline.cpp
+++ b/src/libs/vtools/visualization/line/vistoolendline.cpp
@@ -63,14 +63,21 @@ void VisToolEndLine::RefreshGeometry()
     QLineF line;
     if (qFuzzyIsNull(length))
     {
-        if (QGuiApplication::keyboardModifiers() == Qt::ShiftModifier)
+        if (mode == Mode::Creation)
         {
-            line = QLineF(static_cast<QPointF>(*first), Visualization::scenePos);
-            line.setAngle(CorrectAngle(line.angle()));
+            if (QGuiApplication::keyboardModifiers() == Qt::ShiftModifier)
+            {
+                line = QLineF(static_cast<QPointF>(*first), Visualization::scenePos);
+                line.setAngle(CorrectAngle(line.angle()));
+            }
+            else
+            {
+                line = QLineF(static_cast<QPointF>(*first), Visualization::scenePos);
+            }
         }
         else
         {
-            line = QLineF(static_cast<QPointF>(*first), Visualization::scenePos);
+            DrawPoint(point, static_cast<QPointF>(*first), mainColor);
         }
     }
     else
diff --git a/src/libs/vtools/visualization/visualization.cpp b/src/libs/vtools/visualization/visualization.cpp
index ce5ae0c3e..8af0d6fb4 100644
--- a/src/libs/vtools/visualization/visualization.cpp
+++ b/src/libs/vtools/visualization/visualization.cpp
@@ -251,15 +251,13 @@ void Visualization::DrawLine(VScaledLine *lineItem, const QLineF &line, const QC
 
     QPen visPen = lineItem->pen();
     visPen.setColor(color);
-    visPen.setStyle(style);
+    visPen.setStyle(not line.isNull() ? style : Qt::NoPen);
 
     lineItem->setPen(visPen);
     if (not line.isNull())
     {
         lineItem->setLine(line);
     }
-
-    lineItem->setVisible(not line.isNull());
 }
 
 //---------------------------------------------------------------------------------------------------------------------