diff --git a/Extras/Core/FastReport.Data/WPF.props b/Extras/Core/FastReport.Data/WPF.props
index 6bb29b99..02fa6b4f 100644
--- a/Extras/Core/FastReport.Data/WPF.props
+++ b/Extras/Core/FastReport.Data/WPF.props
@@ -9,10 +9,10 @@
   <Import Project="..\..\..\UsedPackages.version" />
 
   <PropertyGroup>
-    <FastReportWPFProj>..\..\..\..\FastReport.WPF\FastReport.WPF.csproj</FastReportWPFProj>
+    <FastReportWPFProj>..\..\..\FastReport.WPF\FastReport.WPF.csproj</FastReportWPFProj>
     <FastReportWPFPackage>FastReport.WPF.Demo</FastReportWPFPackage>
 
-    <FastReportFormsWPFProj>..\..\..\..\FastReport.Forms.WPF\src\FastReport.Forms.WPF.csproj</FastReportFormsWPFProj>
+    <FastReportFormsWPFProj>..\..\..\FastReport.Forms.WPF\src\FastReport.Forms.WPF.csproj</FastReportFormsWPFProj>
     <FastReportFormsWPFPackage>FastReport.Forms.WPF.Demo</FastReportFormsWPFPackage>
   </PropertyGroup>
 
diff --git a/FastReport.Base/Barcode/Barcode2of5.cs b/FastReport.Base/Barcode/Barcode2of5.cs
index 1e5840b6..85cec86b 100644
--- a/FastReport.Base/Barcode/Barcode2of5.cs
+++ b/FastReport.Base/Barcode/Barcode2of5.cs
@@ -421,26 +421,52 @@ public override void Assign(BarcodeBase source)
         public override void DrawBarcode(IGraphics g, RectangleF displayRect)
         {
             base.DrawBarcode(g, displayRect);
-            float bearerWidth = WideBarRatio * 2 * zoom;
-            using (Pen pen = new Pen(Color, bearerWidth))
+            IGraphicsState state = g.Save();
+            try
             {
-                float x0 = displayRect.Left + (displayRect.Width - barArea.Width * zoom) / 2;
-                float x01 = displayRect.Left + bearerWidth / 2 + (displayRect.Width - barArea.Width * zoom) / 2;
-                float y0 = displayRect.Top;
-                float y01 = displayRect.Top + bearerWidth / 2;
-                float x1 = displayRect.Left + displayRect.Width - (displayRect.Width - barArea.Width * zoom) / 2;
-                float x11 = displayRect.Left + displayRect.Width - bearerWidth / 2 - (displayRect.Width - barArea.Width * zoom) / 2;
-                float y1 = displayRect.Top + barArea.Bottom * zoom;
-                float y11 = displayRect.Top + barArea.Bottom * zoom - bearerWidth / 2;
-
-                g.DrawLine(pen, x0, y01 - 0.5F, x1, y01 - 0.5F);
-                g.DrawLine(pen, x0, y11, x1, y11);
-                if (this.drawVerticalBearerBars)
+                // rotate
+                g.TranslateTransform(displayRect.Left, displayRect.Top);
+                g.RotateTransform(angle);
+                switch (angle)
                 {
-                    g.DrawLine(pen, x01 - 0.5F, y0, x01 - 0.5F, y1);
-                    g.DrawLine(pen, x11, y0, x11, y1);
+                    case 90:
+                        g.TranslateTransform(0, -displayRect.Width);
+                        break;
+                    case 180:
+                        g.TranslateTransform(-displayRect.Width, -displayRect.Height);
+                        break;
+                    case 270:
+                        g.TranslateTransform(-displayRect.Height, 0);
+                        break;
                 }
+                g.TranslateTransform(barArea.Left * zoom, 0);
+
+                float bearerWidth = WideBarRatio * 2 * zoom;
+                using (Pen pen = new Pen(Color, bearerWidth))
+                {
+                    float x0 = 0;
+                    float x01 = bearerWidth / 2;
+                    float y0 = 0;
+                    float y01 = bearerWidth / 2;
+                    float x1 = barArea.Width * zoom;
+                    float x11 = barArea.Width * zoom - bearerWidth / 2;
+                    float y1 = barArea.Bottom * zoom;
+                    float y11 = barArea.Bottom * zoom - bearerWidth / 2;
+
+                    g.DrawLine(pen, x0, y01 - 0.5F, x1, y01 - 0.5F);
+                    g.DrawLine(pen, x0, y11, x1, y11);
+                    if (this.drawVerticalBearerBars)
+                    {
+                        g.DrawLine(pen, x01 - 0.5F, y0, x01 - 0.5F, y1);
+                        g.DrawLine(pen, x11, y0, x11, y1);
+                    }
+                }
+            }
+            finally
+            {
+                g.Restore(state);
             }
+            
         }
 
         #endregion
diff --git a/FastReport.Base/Functions/StdFunctions.cs b/FastReport.Base/Functions/StdFunctions.cs
index a0eb683b..ddf71048 100644
--- a/FastReport.Base/Functions/StdFunctions.cs
+++ b/FastReport.Base/Functions/StdFunctions.cs
@@ -1187,7 +1187,7 @@ public static object Switch(params object[] expressions)
         /// Checks if the specified object is null.
         /// </summary>
         /// <param name="thisReport">The report instance.</param>
-        /// <param name="name">Either a name of DB column, or a parameter name, or a total name to check.</param>
+        /// <param name="name">Either a name of DB column, or a parameter name, or a total name to check. The name must be enclosed in double quotes, for example, [IsNull("Parameter")].</param>
         /// <returns><b>true</b> if the object's value is null.</returns>
         public static bool IsNull(Report thisReport, string name)
         {
diff --git a/FastReport.Base/ReportPage.cs b/FastReport.Base/ReportPage.cs
index 7d314159..0f4c9f09 100644
--- a/FastReport.Base/ReportPage.cs
+++ b/FastReport.Base/ReportPage.cs
@@ -1067,6 +1067,8 @@ public override void Draw(FRPaintEventArgs e)
                     pageRect.Width - (LeftMargin + RightMargin) * Units.Millimeters,
                     pageRect.Height - (TopMargin + BottomMargin) * Units.Millimeters);
             }
+            IGraphicsState state = g.Save();
+            e.Graphics.SetClip(new RectangleF(pageRect.X * e.ScaleX, pageRect.Y * e.ScaleY, pageRect.Width * e.ScaleX, pageRect.Height * e.ScaleY));
 
             Border.Draw(e, printableRect);
             if (Watermark.Enabled)
@@ -1121,6 +1123,7 @@ public override void Draw(FRPaintEventArgs e)
                 if (Watermark.ShowTextOnTop)
                     Watermark.DrawText(e, pageRect, Report, IsPrinting);
             }
+            g.Restore(state);
         }
 
         internal void InitializeComponents()
diff --git a/FastReport.Base/Table/TableHelper.cs b/FastReport.Base/Table/TableHelper.cs
index 5f6fbedd..33e14297 100644
--- a/FastReport.Base/Table/TableHelper.cs
+++ b/FastReport.Base/Table/TableHelper.cs
@@ -345,7 +345,7 @@ private void CopyCells(int originalColumnIndex, int originalRowIndex,
                         if (resultColumnIndex >= spanData.resultCellOrigin.X &&
                           resultColumnIndex <= spanData.resultCellOrigin.X + spanData.resultCell.ColSpan - 1 &&
                           resultRowIndex >= spanData.resultCellOrigin.Y &&
-                          resultRowIndex <= spanData.resultCellOrigin.Y + spanData.resultCell.RowSpan)
+                          resultRowIndex <= spanData.resultCellOrigin.Y + spanData.resultCell.RowSpan - 1)
                         {
                             needData = false;
                             break;
diff --git a/FastReport/Resources/en.xml b/FastReport/Resources/en.xml
index ab47bf95..8e90021f 100644
--- a/FastReport/Resources/en.xml
+++ b/FastReport/Resources/en.xml
@@ -1889,6 +1889,7 @@
       <AddParameter Text="Add Parameter"/>
       <Delete Text="Delete"/>
       <DuplicateName Text="Item with such name already exists."/>
+      <DuplicateParamName Text="The query contains multiple occurrences of one or more parameters ({0}). Please ensure that each use of the parameter matches your expectations and does not cause a conflict during query execution."/>
     </QueryWizard>
     <RelationEditor Text="Edit Relation">
       <ParentTable Text="Parent table:"/>
diff --git a/Localization/Russian.frl b/Localization/Russian.frl
index 033d87b7..f1400884 100644
--- a/Localization/Russian.frl
+++ b/Localization/Russian.frl
@@ -1704,6 +1704,7 @@
       <AddParameter Text="Добавить параметр"/>
       <Delete Text="Удалить"/>
       <DuplicateName Text="Элемент с таким именем уже существует."/>
+      <DuplicateParamName Text="В запросе обнаружено несколько вхождений одного или нескольких параметров ({0}). Пожалуйста, убедитесь, что каждое использование параметра соответствует Вашим ожиданиям и не вызовет конфликта при выполнении запроса."/>
     </QueryWizard>
     <RelationEditor Text="Редактор связи">
       <ParentTable Text="Главная таблица:"/>