diff --git a/EditorContext/EditorContext.cs b/EditorContext/EditorContext.cs
index 7d50e7d..dc5705d 100644
--- a/EditorContext/EditorContext.cs
+++ b/EditorContext/EditorContext.cs
@@ -9,6 +9,7 @@ public abstract class EditorContext
     {
         public string _originalText;
         public int _lastParseTopRow;
+        public int _lastParseHeight;
         public int _lastParseRightColumn;
         public int _tabWidth;
         public bool CanFormat = false;
diff --git a/EditorContext/JSONEditorContext.cs b/EditorContext/JSONEditorContext.cs
index a89bbef..151ebd1 100644
--- a/EditorContext/JSONEditorContext.cs
+++ b/EditorContext/JSONEditorContext.cs
@@ -126,7 +126,7 @@ public List<ParseResult> ParseJsonToken(string text, List<List<Rune>> Runes)
         public override void ParseText(int height, int topRow, int left, int right, string text, List<List<Rune>> Runes)
         {
             // quick exit when text is the same and the top row / right col has not changed
-            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn)
+            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn && _lastParseHeight == height)
             {
                 return;
             }
@@ -144,6 +144,7 @@ public override void ParseText(int height, int topRow, int left, int right, stri
             int bottom = topRow + height;
             _originalText = text;
             _lastParseTopRow = topRow;
+            _lastParseHeight = height;
             _lastParseRightColumn = right;
             long count = 0;
             var row = 0;
diff --git a/EditorContext/MarkdownEditorContext.cs b/EditorContext/MarkdownEditorContext.cs
index 2ac2267..9b1ef84 100644
--- a/EditorContext/MarkdownEditorContext.cs
+++ b/EditorContext/MarkdownEditorContext.cs
@@ -184,7 +184,7 @@ public List<ParseResult> ParseMarkdownToken(string text, List<List<Rune>> Runes)
         public override void ParseText(int height, int topRow, int left, int right, string text, List<List<Rune>> Runes)
         {
             // Quick exit when text is the same and the top row / right col has not changed
-            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn)
+            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn && _lastParseHeight == height)
             {
                 return;
             }
@@ -202,6 +202,7 @@ public override void ParseText(int height, int topRow, int left, int right, stri
             int bottom = topRow + height;
             _originalText = text;
             _lastParseTopRow = topRow;
+            _lastParseHeight = height;
             _lastParseRightColumn = right;
             var row = 0;
 
diff --git a/EditorContext/PowerShellEditorContext.cs b/EditorContext/PowerShellEditorContext.cs
index cd9e3e9..9cab8a3 100644
--- a/EditorContext/PowerShellEditorContext.cs
+++ b/EditorContext/PowerShellEditorContext.cs
@@ -197,7 +197,7 @@ public List<ParseResult> ParsePowershellToken(Token[] tokens, string text, List<
         public override void ParseText(int height, int topRow, int left, int right, string text, List<List<Rune>> Runes)
         {
             // quick exit when text is the same and the top row / right col has not changed
-            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn)
+            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn && _lastParseHeight == height)
             {
                 return;
             }
@@ -217,6 +217,7 @@ public override void ParseText(int height, int topRow, int left, int right, stri
             int bottom = topRow + height;
             _originalText = text;
             _lastParseTopRow = topRow;
+            _lastParseHeight = height;
             _lastParseRightColumn = right;
             var row = 0;
             for (int idxRow = topRow; idxRow < Runes.Count; idxRow++)
diff --git a/EditorContext/XmlEditorContext.cs b/EditorContext/XmlEditorContext.cs
index 6df2832..16f05bc 100644
--- a/EditorContext/XmlEditorContext.cs
+++ b/EditorContext/XmlEditorContext.cs
@@ -391,7 +391,7 @@ private void AddParseResult(List<ParseResult> resultList, int lineNumber, int st
 
         public override void ParseText(int height, int topRow, int left, int right, string text, List<List<Rune>> Runes)
         {
-            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn)
+            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn && _lastParseHeight == height)
             {
                 return;
             }
@@ -408,6 +408,7 @@ public override void ParseText(int height, int topRow, int left, int right, stri
             int bottom = topRow + height;
             _originalText = text;
             _lastParseTopRow = topRow;
+            _lastParseHeight = height;
             _lastParseRightColumn = right;
 
             var row = 0;
diff --git a/EditorContext/YamlEditorContext.cs b/EditorContext/YamlEditorContext.cs
index 0996d93..50ffb4a 100644
--- a/EditorContext/YamlEditorContext.cs
+++ b/EditorContext/YamlEditorContext.cs
@@ -115,7 +115,7 @@ public List<ParseResult> ParseYamlToken(string text, List<List<Rune>> Runes)
         }
         public override void ParseText(int height, int topRow, int left, int right, string text, List<List<Rune>> Runes)
         {
-            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn)
+            if (_originalText == text && topRow == _lastParseTopRow && right == _lastParseRightColumn && _lastParseHeight == height)
             {
                 return;
             }
@@ -130,6 +130,7 @@ public override void ParseText(int height, int topRow, int left, int right, stri
             int bottom = topRow + height;
             _originalText = text;
             _lastParseTopRow = topRow;
+            _lastParseHeight = height;
             _lastParseRightColumn = right;
             long count = 0;
             var row = 0;