diff --git a/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryCurveCreatorSplitterUi.cpp b/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryCurveCreatorSplitterUi.cpp
index 8c7168092b..1bb30e7617 100644
--- a/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryCurveCreatorSplitterUi.cpp
+++ b/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryCurveCreatorSplitterUi.cpp
@@ -146,7 +146,11 @@ QWidget* RicSummaryCurveCreatorSplitterUi::createWidget( QWidget* parent )
 
     m_firstColumnSplitter->insertWidget( 0, firstRowFrame );
     m_firstColumnSplitter->insertWidget( 1, secondRowFrame );
-    m_firstColumnSplitter->setSizes( QList<int>() << 1 << 2 );
+
+    const int firstRowPixelHeight  = 500;
+    const int secondRowPixelHeight = 300;
+
+    m_firstColumnSplitter->setSizes( QList<int>() << firstRowPixelHeight << secondRowPixelHeight );
 
     m_layout->addWidget( m_firstColumnSplitter );
 
diff --git a/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp b/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp
index f31c96bac1..f76ae86b0b 100644
--- a/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp
+++ b/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp
@@ -579,7 +579,7 @@ void RiuSummaryCurveDefSelection::setDefaultSelection( const std::vector<Summary
 
     if ( allSumCases.size() > 0 )
     {
-        RifEclipseSummaryAddress defaultAddress = RifEclipseSummaryAddress::fieldAddress( "FOPT" );
+        RifEclipseSummaryAddress defaultAddress;
 
         std::vector<SummarySource*> selectTheseSources = defaultSources;
         if ( selectTheseSources.empty() ) selectTheseSources.push_back( allSumCases[0] );
@@ -612,11 +612,6 @@ void RiuSummaryCurveDefSelection::setSelectedCurveDefinitions( const std::vector
         RimSummaryCase* summaryCase = curveDef.summaryCase();
 
         RifEclipseSummaryAddress summaryAddress = curveDef.summaryAddress();
-        if ( summaryAddress.category() == RifEclipseSummaryAddress::SUMMARY_INVALID )
-        {
-            // If we have an invalid address, set the default address to Field
-            summaryAddress = RifEclipseSummaryAddress::fieldAddress( summaryAddress.quantityName() );
-        }
 
         // Ignore ensemble statistics curves
         if ( summaryAddress.category() == RifEclipseSummaryAddress::SUMMARY_ENSEMBLE_STATISTICS ) continue;
@@ -627,7 +622,15 @@ void RiuSummaryCurveDefSelection::setSelectedCurveDefinitions( const std::vector
         if ( std::find( selectedCategories.begin(), selectedCategories.end(), summaryAddress.category() ) ==
              selectedCategories.end() )
         {
-            m_selectedSummaryCategories.v().push_back( summaryAddress.category() );
+            if ( summaryAddress.category() != RifEclipseSummaryAddress::SUMMARY_INVALID )
+            {
+                m_selectedSummaryCategories.v().push_back( summaryAddress.category() );
+            }
+            else
+            {
+                // Use field category as fall back category to avoid an empty list of vectors
+                summaryAddress = RifEclipseSummaryAddress::fieldAddress( "" );
+            }
         }
 
         // Select case if not already selected