I have put a lot of effort to rewrite huge part of my app to work with QValueVector but all in vain. Below I present proof of this broken component. Correct me if I'm wrong and I'll be happy.

My code:
Qt Code: 
  1. qDebug(">");
  2. 		playlistsList::iterator i, j;
  3. 		i = playlists.begin();
  4. 		j = i;
  5. 		i += where;
  6.  
  7. 		//qDebug(playlists.at(which).name);
  8. 		//qDebug((*i).name);
  9.  
  10. 		for (int i = 0 ; i != playlists.count() ; i++, j++)
  11. 		{
  12. 			qDebug(playlists.at(i).name + " " + (*j).name);
  13. 		}
  14.  
  15. 		qDebug("i'll insert " + playlists.at(which).name + " before " + (*i).name);
  16.  
  17. 		playlists.insert(i, playlists.at(which));
  18.  
  19. 		for (int i = 0 ; i != playlists.count() ; i++)
  20. 			qDebug(playlists.at(i).name);
  21.  
  22. 		qDebug("after redundant removed");
  23.  
  24. 		i = playlists.begin();
  25. 		j = i;
  26. 		i += (which + 1);
  27.  
  28. 		playlists.erase(i);
  29.  
  30. 		for (int i = 0 ; i != playlists.count() ; i++, j++)
  31. 			qDebug(playlists.at(i).name + " " + (*j).name);
  32.  
  33. 		qDebug("");
  34. 		qDebug("");
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Results after first execution of above code are correct:
Qt Code: 
  1. >
  2. aa aa
  3. bb bb
  4. i'll insert bb before aa
  5. bb
  6. aa
  7. bb
  8. after redundant removed
  9. bb bb
  10. aa aa
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Second execution gives INCORRECT result:
Qt Code: 
  1. >
  2. bb bb
  3. aa aa
  4. i'll insert aa before bb
  5. bb
  6. bb
  7. aa
  8. after redundant removed
  9. bb bb
  10. bb bb
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Can anyone help me?