I trying to to QDomDocument to read XML, but it is not reading everything.

Here is the original file:
Qt Code: 
  1. <!DOCTYPE MapData>
  2. <MapData>
  3.  <MapHeader HeaderId="SME" Version="0"/>
  4.  <TilesetData TilesetCount="1">
  5.   <Tileset0 Width="4032" Height="1248" TileHeight="96" Name="trew4w4" TileWidth="96">
  6.    <ImageData I REMOVED THIS PART>
  7.   </Tileset0>
  8.  </TilesetData>
  9.  <LayerData LayerCount="1">
  10.   <0 TileCount="1" ZValue="0" Name="Layer 0">
  11.    <TileData>
  12.     <0 x="0" y="0" SourceId="0" TileId="1"/>
  13.    </TileData>
  14.   </0>
  15.  </LayerData>
  16. </MapData>
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I suspected that it wasn't reading everything, so I dumped what it read to another file using QTextStream.

This is what it had:
Qt Code: 
  1. <!DOCTYPE MapData>
  2. <MapData>
  3.  <MapHeader HeaderId="SME" Version="0"/>
  4.  <TilesetData TilesetCount="1">
  5.   <Tileset0 Width="4032" Height="1248" TileHeight="96" Name="trew4w4" TileWidth="96"/>
  6.  </TilesetData>
  7. </MapData>
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What could be causing this?