*** This bug has been marked as a duplicate of bug 247588 ***

this is strange that you still reproduce this bug.

Confirmed, I've managed to repeat it

commit 06d21ce5e4992ceee78b720bc977812752d870c3
branch 2.0
Author: Michal Malek <michalm@jabster.pl>
Date:   Wed Jan 5 19:26:28 2011 +0100

    Fixed crash after track splitting. The crash was caused by improper sorting of ranges. They need to be sorted by times, not by identifiers.
    BUG: 261188

diff --git a/ChangeLog b/ChangeLog
index 7b8a80b..6758c0b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -13,6 +13,7 @@ Bugfixes:
  * Fixed playlist sort order (249395)
  * Show K3b also in "System" category in KDE launch menus (250749)
  * Crash when multiple instances start at the same time (253794)
+ * Crash after track splitting (261188)
 
 2.0.1
 =====
diff --git a/src/projects/k3baudioeditorwidget.cpp b/src/projects/k3baudioeditorwidget.cpp
index f847d01..c0d8e33 100644
--- a/src/projects/k3baudioeditorwidget.cpp
+++ b/src/projects/k3baudioeditorwidget.cpp
@@ -1,7 +1,7 @@
 /*
  *
  * Copyright (C) 2004-2008 Sebastian Trueg <trueg@k3b.org>
- * Copyright (C) 2010 Michal Malek <michalm@jabster.pl>
+ * Copyright (C) 2010-2011 Michal Malek <michalm@jabster.pl>
  *
  * This file is part of the K3b project.
  * Copyright (C) 1998-2008 Sebastian Trueg <trueg@k3b.org>
@@ -101,6 +101,15 @@ public:
 };
 
 
+struct K3b::AudioEditorWidget::SortByStart
+{
+    bool operator()( Range const* lhs, Range const* rhs )
+    {
+        return lhs->start < rhs->start;
+    }
+};
+
+
 class K3b::AudioEditorWidget::Private
 {
 public:
@@ -361,11 +370,20 @@ K3b::Msf K3b::AudioEditorWidget::rangeEnd( int identifier ) const
 
 QList<int> K3b::AudioEditorWidget::allRanges() const
 {
+    // First collect all ranges to one random-access container...
+    QList<Range const*> ranges;
+    Q_FOREACH( Range const& range, d->ranges ) {
+        ranges.push_back( &range );
+    }
+
+    // ...then sort it...
+    qSort( ranges.begin(), ranges.end(), SortByStart() );
+
+    // ...finally collect its identifiers and return the collection.
     QList<int> identifiers;
-    for( Range::List::const_iterator it = d->ranges.constBegin(); it != d->ranges.constEnd(); ++it ) {
-        identifiers.append( it->id );
+    Q_FOREACH( Range const* range, ranges ) {
+        identifiers.push_back( range->id );
     }
-    qSort( identifiers );
     return identifiers;
 }
 
@@ -567,16 +585,16 @@ void K3b::AudioEditorWidget::fixupOverlappingRanges( int rangeId )
 {
     Range* r = getRange( rangeId );
     Range::List::iterator range = d->ranges.begin();
-    
+
     while( r != 0 && range != d->ranges.end() ) {
         if( range->id != rangeId ) {
-            
+
             // remove the range if it is covered completely
             if( range->start >= r->start &&
                 range->end <= r->end ) {
                 if( d->selectedRangeId == range->id )
                     setSelectedRange( 0 );
-                
+
                 range = d->ranges.erase( range );
                 emit rangeRemoved( rangeId );
                 // "r" may be invalid at this point, let's find it once again
@@ -733,24 +751,24 @@ bool K3b::AudioEditorWidget::event( QEvent* e )
     if( e->type() == QEvent::ToolTip ) {
         QHelpEvent* helpEvent = dynamic_cast<QHelpEvent*>( e );
         const QPoint pos = mapFromGlobal( helpEvent->globalPos() );
-        
+
         if( Marker* m = findMarker( pos ) ) {
             QToolTip::showText( helpEvent->globalPos(),
                                 m->toolTip.isEmpty() ? m->pos.toString() : QString("%1 (%2)").arg(m->toolTip).arg(m->pos.toString()),
                                 this );
         }
         else if( Range* range = findRange( pos ) ) {
-            QToolTip::showText( helpEvent->globalPos(), 
+            QToolTip::showText( helpEvent->globalPos(),
                                 range->toolTip.isEmpty()
                                 ? QString("%1 - %2").arg(range->start.toString()).arg(range->end.toString())
                                 : QString("%1 (%2 - %3)").arg(range->toolTip).arg(range->start.toString()).arg(range->end.toString()),
                                 this );
-            
+
         }
         else {
             QToolTip::hideText();
         }
-        
+
         e->accept();
         return true;
     }
diff --git a/src/projects/k3baudioeditorwidget.h b/src/projects/k3baudioeditorwidget.h
index f007ec3..1a8b2c3 100644
--- a/src/projects/k3baudioeditorwidget.h
+++ b/src/projects/k3baudioeditorwidget.h
@@ -1,7 +1,7 @@
-/* 
+/*
  *
  * Copyright (C) 2004-2008 Sebastian Trueg <trueg@k3b.org>
- * Copyright (C) 2010 Michal Malek <michalm@jabster.pl>
+ * Copyright (C) 2010-2011 Michal Malek <michalm@jabster.pl>
  *
  * This file is part of the K3b project.
  * Copyright (C) 1998-2008 Sebastian Trueg <trueg@k3b.org>
@@ -52,7 +52,7 @@ public:
      *
      * @return -1 on error or an identifier on success (be aware that the highest value for end is length-1)
      */
-    int addRange( const K3b::Msf& start, const K3b::Msf& end, 
+    int addRange( const K3b::Msf& start, const K3b::Msf& end,
                   bool startFixed = false, bool endFixed = false,
                   const QString& toolTip = QString(),
                   const QBrush& brush = QBrush() );
@@ -95,7 +95,7 @@ public:
      * @param fixed if true the marker cannot be changed by the user, only with moveMarker
      * @return -1 on error or an identifier on success.
      */
-    int addMarker( const K3b::Msf& pos, bool fixed = false, 
+    int addMarker( const K3b::Msf& pos, bool fixed = false,
                    const QString& toolTip = QString(), const QColor& color = QColor() );
 
     /**
@@ -168,7 +168,7 @@ Q_SIGNALS:
     void markerMoved( int identifier, const K3b::Msf& pos );
     void markerAdded( int identifier, const K3b::Msf& pos );
     void markerRemoved( int identifier );
-    
+
 protected:
     virtual void paintEvent( QPaintEvent* e );
     virtual void mousePressEvent( QMouseEvent* e );
@@ -180,6 +180,7 @@ protected:
 private:
     class Range;
     class Marker;
+    struct SortByStart;
 
     class Private;
     Private* d;

commit 694ba7e28159e9efbf2df1e01976a65eed321c61
branch master
Author: Michal Malek <michalm@jabster.pl>
Date:   Wed Jan 5 19:26:28 2011 +0100

    Fixed crash after track splitting. The crash was caused by improper sorting of ranges. They need to be sorted by times, not by identifiers.
    BUG: 261188

diff --git a/ChangeLog b/ChangeLog
index a9f6443..bae0fb3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -23,6 +23,7 @@ Bugfixes:
  * Fixed playlist sort order (249395)
  * Show K3b also in "System" category in KDE launch menus (250749)
  * Crash when multiple instances start at the same time (253794)
+ * Crash after track splitting (261188)
 
 2.0.1
 =====
diff --git a/src/projects/k3baudioeditorwidget.cpp b/src/projects/k3baudioeditorwidget.cpp
index f847d01..c0d8e33 100644
--- a/src/projects/k3baudioeditorwidget.cpp
+++ b/src/projects/k3baudioeditorwidget.cpp
@@ -1,7 +1,7 @@
 /*
  *
  * Copyright (C) 2004-2008 Sebastian Trueg <trueg@k3b.org>
- * Copyright (C) 2010 Michal Malek <michalm@jabster.pl>
+ * Copyright (C) 2010-2011 Michal Malek <michalm@jabster.pl>
  *
  * This file is part of the K3b project.
  * Copyright (C) 1998-2008 Sebastian Trueg <trueg@k3b.org>
@@ -101,6 +101,15 @@ public:
 };
 
 
+struct K3b::AudioEditorWidget::SortByStart
+{
+    bool operator()( Range const* lhs, Range const* rhs )
+    {
+        return lhs->start < rhs->start;
+    }
+};
+
+
 class K3b::AudioEditorWidget::Private
 {
 public:
@@ -361,11 +370,20 @@ K3b::Msf K3b::AudioEditorWidget::rangeEnd( int identifier ) const
 
 QList<int> K3b::AudioEditorWidget::allRanges() const
 {
+    // First collect all ranges to one random-access container...
+    QList<Range const*> ranges;
+    Q_FOREACH( Range const& range, d->ranges ) {
+        ranges.push_back( &range );
+    }
+
+    // ...then sort it...
+    qSort( ranges.begin(), ranges.end(), SortByStart() );
+
+    // ...finally collect its identifiers and return the collection.
     QList<int> identifiers;
-    for( Range::List::const_iterator it = d->ranges.constBegin(); it != d->ranges.constEnd(); ++it ) {
-        identifiers.append( it->id );
+    Q_FOREACH( Range const* range, ranges ) {
+        identifiers.push_back( range->id );
     }
-    qSort( identifiers );
     return identifiers;
 }
 
@@ -567,16 +585,16 @@ void K3b::AudioEditorWidget::fixupOverlappingRanges( int rangeId )
 {
     Range* r = getRange( rangeId );
     Range::List::iterator range = d->ranges.begin();
-    
+
     while( r != 0 && range != d->ranges.end() ) {
         if( range->id != rangeId ) {
-            
+
             // remove the range if it is covered completely
             if( range->start >= r->start &&
                 range->end <= r->end ) {
                 if( d->selectedRangeId == range->id )
                     setSelectedRange( 0 );
-                
+
                 range = d->ranges.erase( range );
                 emit rangeRemoved( rangeId );
                 // "r" may be invalid at this point, let's find it once again
@@ -733,24 +751,24 @@ bool K3b::AudioEditorWidget::event( QEvent* e )
     if( e->type() == QEvent::ToolTip ) {
         QHelpEvent* helpEvent = dynamic_cast<QHelpEvent*>( e );
         const QPoint pos = mapFromGlobal( helpEvent->globalPos() );
-        
+
         if( Marker* m = findMarker( pos ) ) {
             QToolTip::showText( helpEvent->globalPos(),
                                 m->toolTip.isEmpty() ? m->pos.toString() : QString("%1 (%2)").arg(m->toolTip).arg(m->pos.toString()),
                                 this );
         }
         else if( Range* range = findRange( pos ) ) {
-            QToolTip::showText( helpEvent->globalPos(), 
+            QToolTip::showText( helpEvent->globalPos(),
                                 range->toolTip.isEmpty()
                                 ? QString("%1 - %2").arg(range->start.toString()).arg(range->end.toString())
                                 : QString("%1 (%2 - %3)").arg(range->toolTip).arg(range->start.toString()).arg(range->end.toString()),
                                 this );
-            
+
         }
         else {
             QToolTip::hideText();
         }
-        
+
         e->accept();
         return true;
     }
diff --git a/src/projects/k3baudioeditorwidget.h b/src/projects/k3baudioeditorwidget.h
index f007ec3..1a8b2c3 100644
--- a/src/projects/k3baudioeditorwidget.h
+++ b/src/projects/k3baudioeditorwidget.h
@@ -1,7 +1,7 @@
-/* 
+/*
  *
  * Copyright (C) 2004-2008 Sebastian Trueg <trueg@k3b.org>
- * Copyright (C) 2010 Michal Malek <michalm@jabster.pl>
+ * Copyright (C) 2010-2011 Michal Malek <michalm@jabster.pl>
  *
  * This file is part of the K3b project.
  * Copyright (C) 1998-2008 Sebastian Trueg <trueg@k3b.org>
@@ -52,7 +52,7 @@ public:
      *
      * @return -1 on error or an identifier on success (be aware that the highest value for end is length-1)
      */
-    int addRange( const K3b::Msf& start, const K3b::Msf& end, 
+    int addRange( const K3b::Msf& start, const K3b::Msf& end,
                   bool startFixed = false, bool endFixed = false,
                   const QString& toolTip = QString(),
                   const QBrush& brush = QBrush() );
@@ -95,7 +95,7 @@ public:
      * @param fixed if true the marker cannot be changed by the user, only with moveMarker
      * @return -1 on error or an identifier on success.
      */
-    int addMarker( const K3b::Msf& pos, bool fixed = false, 
+    int addMarker( const K3b::Msf& pos, bool fixed = false,
                    const QString& toolTip = QString(), const QColor& color = QColor() );
 
     /**
@@ -168,7 +168,7 @@ Q_SIGNALS:
     void markerMoved( int identifier, const K3b::Msf& pos );
     void markerAdded( int identifier, const K3b::Msf& pos );
     void markerRemoved( int identifier );
-    
+
 protected:
     virtual void paintEvent( QPaintEvent* e );
     virtual void mousePressEvent( QMouseEvent* e );
@@ -180,6 +180,7 @@ protected:
 private:
     class Range;
     class Marker;
+    struct SortByStart;
 
     class Private;
     Private* d;