diff --git a/PowerEditor/src/Parameters.cpp b/PowerEditor/src/Parameters.cpp
index d153886fc..e0452e3bd 100644
--- a/PowerEditor/src/Parameters.cpp
+++ b/PowerEditor/src/Parameters.cpp
@@ -2828,7 +2828,7 @@ void StyleArray::addStyler(int styleID, TiXmlNode *styleNode)
 	{
 		styleID = (styleID & 0xFFFF);
 		index = styleID;
-		if (index >= SCE_USER_STYLE_TOTAL_STYLES)
+		if (index >= SCE_USER_STYLE_TOTAL_STYLES || _styleArray[index]._styleID != -1)
 			return;
 	}
 
@@ -5349,7 +5349,8 @@ void NppParameters::insertUserLang2Tree(TiXmlNode *node, UserLangContainer *user
 
 	TiXmlElement *styleRootElement = (rootElement->InsertEndChild(TiXmlElement(TEXT("Styles"))))->ToElement();
 
-	for (int i = 0 ; i < userLang->_styleArray.getNbStyler() ; i++)
+	//for (int i = 0 ; i < userLang->_styleArray.getNbStyler() ; i++)
+	for (int i = 0 ; i < SCE_USER_STYLE_TOTAL_STYLES ; i++)
 	{
 		TiXmlElement *styleElement = (styleRootElement->InsertEndChild(TiXmlElement(TEXT("WordsStyle"))))->ToElement();
 		Style style2Write = userLang->_styleArray.getStyler(i);
@@ -5405,8 +5406,9 @@ void NppParameters::stylerStrOp(bool op)
 {
 	for (int i = 0 ; i < _nbUserLang ; i++)
 	{
-		int nbStyler = _userLangArray[i]->_styleArray.getNbStyler();
-		for (int j = 0 ; j < nbStyler ; j++)
+		//int nbStyler = _userLangArray[i]->_styleArray.getNbStyler();
+		//for (int j = 0 ; j < nbStyler ; j++)
+		for (int j = 0 ; j < SCE_USER_STYLE_TOTAL_STYLES ; j++)
 		{
 			Style & style = _userLangArray[i]->_styleArray.getStyler(j);
 			
diff --git a/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp b/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
index 0e5af1e12..34fc2b949 100644
--- a/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
+++ b/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
@@ -766,7 +766,8 @@ void ScintillaEditView::setUserLexer(const TCHAR *userLangName)
 	char intBuffer[10];
 	char nestingBuffer[] = "userDefine.nesting.00";
 	
-	for (int i = 0 ; i < userLangContainer->_styleArray.getNbStyler() ; i++)
+	//for (int i = 0 ; i < userLangContainer->_styleArray.getNbStyler() ; i++)
+	for (int i = 0 ; i < SCE_USER_STYLE_TOTAL_STYLES ; i++)
 	{
 		Style & style = userLangContainer->_styleArray.getStyler(i);