diff --git a/canframemodel.cpp b/canframemodel.cpp
index df75171..5d30d21 100644
--- a/canframemodel.cpp
+++ b/canframemodel.cpp
@@ -59,7 +59,7 @@ CANFrameModel::CANFrameModel(QObject *parent)
     }
 
     QSettings settings;
-    int preallocSize = settings.value("Main/MaximumFrames", maxFramesDefault).toInt();
+    preallocSize = settings.value("Main/MaximumFrames", maxFramesDefault).toInt();
 
     //the goal is to prevent a reallocation from ever happening
     frames.reserve(preallocSize);
@@ -749,15 +749,15 @@ void CANFrameModel::addFrames(const CANConnection*, const QVector<CANFrame>& pFr
 {
     if(frames.length() > frames.capacity() * 0.99)
     {
-        qDebug() << "Frames count: " << frames.length() << " of " << frames.capacity() << " capacity, removing first " << frames.capacity() * 0.05 << " frames";
-        frames.remove(0, frames.capacity() * 0.05);
+        qDebug() << "Frames count: " << frames.length() << " of " << frames.capacity() << " capacity, removing first " << (int)(frames.capacity() * 0.05) << " frames";
+        frames.remove(0, (int)(frames.capacity() * 0.05));
         qDebug() << "Frames removed, new count: " << frames.length();
     }
 
     if(filteredFrames.length() > filteredFrames.capacity() * 0.99)
     {
-        qDebug() << "filteredFrames count: " << filteredFrames.length() << " of " << filteredFrames.capacity() << " capacity, removing first " << filteredFrames.capacity() * 0.05 << " frames";
-        filteredFrames.remove(0, filteredFrames.capacity() * 0.05);
+        qDebug() << "filteredFrames count: " << filteredFrames.length() << " of " << filteredFrames.capacity() << " capacity, removing first " << (int)(filteredFrames.capacity() * 0.05) << " frames";
+        filteredFrames.remove(0, (int)(filteredFrames.capacity() * 0.05));
         qDebug() << "filteredFrames removed, new count: " << filteredFrames.length();
     }
 
@@ -787,8 +787,8 @@ void CANFrameModel::sendRefresh()
     mutex.lock();
     beginResetModel();
     filteredFrames.clear();
-    filteredFrames.reserve(preallocSize);
     filteredFrames.append(tempContainer);
+    filteredFrames.reserve(preallocSize);
 
     lastUpdateNumFrames = 0;
     endResetModel();
diff --git a/dbc/dbchandler.cpp b/dbc/dbchandler.cpp
index 6e29ad7..d60dd1b 100644
--- a/dbc/dbchandler.cpp
+++ b/dbc/dbchandler.cpp
@@ -351,7 +351,11 @@ DBC_NODE* DBCFile::findNodeByNameAndComment(QString fullname)
     if (dbc_nodes.length() == 0) return nullptr;
     for (int i = 0; i < dbc_nodes.length(); i++)
     {
-        nameAndComment = dbc_nodes[i].name + " - " + dbc_nodes[i].comment;
+        if(dbc_nodes[i].comment.isEmpty())
+            nameAndComment = dbc_nodes[i].name;
+        else
+            nameAndComment = dbc_nodes[i].name + " - " + dbc_nodes[i].comment;
+
         if (fullname.compare(nameAndComment, Qt::CaseInsensitive) == 0)
         {
             return &dbc_nodes[i];
diff --git a/dbc/dbcnodeeditor.cpp b/dbc/dbcnodeeditor.cpp
index e8363a3..f553fb4 100644
--- a/dbc/dbcnodeeditor.cpp
+++ b/dbc/dbcnodeeditor.cpp
@@ -111,8 +111,11 @@ void DBCNodeEditor::showEvent(QShowEvent* event)
 
 void DBCNodeEditor::refreshView()
 {
-    ui->lineComment->setText(dbcNode->comment);
-    ui->lineMsgName->setText(dbcNode->name);
+    if(dbcNode)
+    {
+        ui->lineComment->setText(dbcNode->comment);
+        ui->lineMsgName->setText(dbcNode->name);
+    }
 
     //generateSampleText();
 }