diff --git a/src/eepp/ui/css/stylesheetspecification.cpp b/src/eepp/ui/css/stylesheetspecification.cpp
index 65176a1ee..eb67b31f1 100644
--- a/src/eepp/ui/css/stylesheetspecification.cpp
+++ b/src/eepp/ui/css/stylesheetspecification.cpp
@@ -428,24 +428,19 @@ static bool isNth( int a, int b, int count ) {
 }
 
 void StyleSheetSpecification::registerDefaultNodeSelectors() {
-	mNodeSelectors["empty"] = []( const UIWidget* node, int a, int b,
-								  const FunctionString& data ) -> bool {
+	mNodeSelectors["empty"] = []( const UIWidget* node, int, int, const FunctionString& ) -> bool {
 		return node->getFirstChild() == NULL;
 	};
-	mNodeSelectors["first-child"] = []( const UIWidget* node, int a, int b,
-										const FunctionString& data ) -> bool {
+	mNodeSelectors["first-child"] = []( const UIWidget* node, int, int,
+										const FunctionString& ) -> bool {
 		return NULL != node->getParent() && node->getParent()->getFirstChild() == node;
 	};
-	mNodeSelectors["enabled"] = []( const UIWidget* node, int a, int b,
-									const FunctionString& data ) -> bool {
-		return node->isEnabled();
-	};
-	mNodeSelectors["disabled"] = []( const UIWidget* node, int a, int b,
-									 const FunctionString& data ) -> bool {
-		return !node->isEnabled();
-	};
-	mNodeSelectors["first-of-type"] = []( const UIWidget* node, int a, int b,
-										  const FunctionString& data ) -> bool {
+	mNodeSelectors["enabled"] = []( const UIWidget* node, int, int,
+									const FunctionString& ) -> bool { return node->isEnabled(); };
+	mNodeSelectors["disabled"] = []( const UIWidget* node, int, int,
+									 const FunctionString& ) -> bool { return !node->isEnabled(); };
+	mNodeSelectors["first-of-type"] = []( const UIWidget* node, int, int,
+										  const FunctionString& ) -> bool {
 		Node* child = NULL != node->getParent() ? node->getParent()->getFirstChild() : NULL;
 		Uint32 type = node->getType();
 		while ( NULL != child ) {
@@ -456,12 +451,12 @@ void StyleSheetSpecification::registerDefaultNodeSelectors() {
 		};
 		return false;
 	};
-	mNodeSelectors["last-child"] = []( const UIWidget* node, int a, int b,
-									   const FunctionString& data ) -> bool {
+	mNodeSelectors["last-child"] = []( const UIWidget* node, int, int,
+									   const FunctionString& ) -> bool {
 		return NULL != node->getParent() && node->getParent()->getLastChild() == node;
 	};
-	mNodeSelectors["last-of-type"] = []( const UIWidget* node, int a, int b,
-										 const FunctionString& data ) -> bool {
+	mNodeSelectors["last-of-type"] = []( const UIWidget* node, int, int,
+										 const FunctionString& ) -> bool {
 		Node* child = NULL != node->getParent() ? node->getParent()->getLastChild() : NULL;
 		Uint32 type = node->getType();
 		while ( NULL != child ) {
@@ -472,12 +467,12 @@ void StyleSheetSpecification::registerDefaultNodeSelectors() {
 		};
 		return false;
 	};
-	mNodeSelectors["only-child"] = []( const UIWidget* node, int a, int b,
-									   const FunctionString& data ) -> bool {
+	mNodeSelectors["only-child"] = []( const UIWidget* node, int, int,
+									   const FunctionString& ) -> bool {
 		return NULL != node->getParent() && node->getParent()->getChildCount() == 1;
 	};
-	mNodeSelectors["only-of-type"] = []( const UIWidget* node, int a, int b,
-										 const FunctionString& data ) -> bool {
+	mNodeSelectors["only-of-type"] = []( const UIWidget* node, int, int,
+										 const FunctionString& ) -> bool {
 		Node* child = NULL != node->getParent() ? node->getParent()->getFirstChild() : NULL;
 		Uint32 type = node->getType();
 		Uint32 typeCount = 0;
@@ -492,30 +487,30 @@ void StyleSheetSpecification::registerDefaultNodeSelectors() {
 		return typeCount == 1;
 	};
 	mNodeSelectors["nth-child"] = []( const UIWidget* node, int a, int b,
-									  const FunctionString& data ) -> bool {
+									  const FunctionString& ) -> bool {
 		return isNth( a, b, node->getNodeIndex() + 1 );
 	};
 	mNodeSelectors["nth-last-child"] = []( const UIWidget* node, int a, int b,
-										   const FunctionString& data ) -> bool {
+										   const FunctionString& ) -> bool {
 		return isNth( a, b, node->getChildCount() - node->getNodeIndex() );
 	};
 	mNodeSelectors["nth-of-type"] = []( const UIWidget* node, int a, int b,
-										const FunctionString& data ) -> bool {
+										const FunctionString& ) -> bool {
 		return isNth( a, b, node->getNodeOfTypeIndex() + 1 );
 	};
 	mNodeSelectors["nth-last-of-type"] = []( const UIWidget* node, int a, int b,
-											 const FunctionString& data ) -> bool {
+											 const FunctionString& ) -> bool {
 		return node->getParent() != NULL
 				   ? isNth( a, b,
 							node->getParent()->getChildOfTypeCount( node->getType() ) -
 								node->getNodeOfTypeIndex() )
 				   : false;
 	};
-	mNodeSelectors["checked"] = []( const UIWidget* node, int a, int b,
-									const FunctionString& data ) -> bool {
+	mNodeSelectors["checked"] = []( const UIWidget* node, int, int,
+									const FunctionString& ) -> bool {
 		return 0 != ( node->getFlags() & UI_CHECKED );
 	};
-	mNodeSelectors["not"] = []( const UIWidget* node, int a, int b,
+	mNodeSelectors["not"] = []( const UIWidget* node, int, int,
 								const FunctionString& data ) -> bool {
 		if ( !data.isEmpty() && !data.getParameters().empty() && data.getName() == "not" ) {
 			for ( const auto& param : data.getParameters() ) {
@@ -641,8 +636,8 @@ static int getIndexEndingWith( const std::vector<std::string>& vec, const std::s
 }
 
 void StyleSheetSpecification::registerDefaultShorthandParsers() {
-	mShorthandParsers["empty"] = []( const ShorthandDefinition* shorthand,
-									 std::string value ) -> std::vector<StyleSheetProperty> {
+	mShorthandParsers["empty"] = []( const ShorthandDefinition*,
+									 std::string ) -> std::vector<StyleSheetProperty> {
 		return {};
 	};
 
diff --git a/src/thirdparty/efsw b/src/thirdparty/efsw
index d73a45ffa..f3914e475 160000
--- a/src/thirdparty/efsw
+++ b/src/thirdparty/efsw
@@ -1 +1 @@
-Subproject commit d73a45ffa7b79bcbd299e782d9263a5d946acf7a
+Subproject commit f3914e475cc8cec461ac05060470c6510ee81246
diff --git a/src/tools/ecode/appconfig.cpp b/src/tools/ecode/appconfig.cpp
index 064043edb..9aeaccb51 100644
--- a/src/tools/ecode/appconfig.cpp
+++ b/src/tools/ecode/appconfig.cpp
@@ -318,6 +318,8 @@ static void loadDocuments( UICodeEditorSplitter* editorSplitter, std::shared_ptr
 		for ( const auto& file : j["files"] ) {
 			if ( !file.contains( "type" ) || file["type"] == "editor" ) {
 				std::string path( file["path"] );
+				if ( !FileSystem::fileExists( path ) )
+					return;
 				TextRange selection( TextRange::fromString( file["selection"] ) );
 				editorSplitter->loadAsyncFileFromPathInNewTab(
 					path, pool,