If the user has a tallies.xml file with multiple tallies using different meshes, this will overwrite the dimensions of all but the last mesh. For example, if I have the following tallies.xml file
```xml
  <mesh id="1">
    <type>rectangular</type>
    <lower_left>-182.07 -182.07 -183.00</lower_left>
    <upper_right>182.07 182.07 183.00</upper_right>
    <dimension>17 17 1</dimension>
  </mesh>

  <mesh id="2">
    <type>rectangular</type>
    <lower_left>-182.07 -182.07 -183.00</lower_left>
    <upper_right>182.07 182.07 183.00</upper_right>
    <dimension>5 5 5</dimension>
  </mesh>

  <tally id="1">
    <filter type="mesh" bins="1" />
    <scores>flux</scores>
  </tally>

  <tally id="2">
    <filter type="mesh" bins="2" />
    <scores>flux</scores>
  </tally>
```
When I try to plot the first tally, it will come up as a 5x5x1 mesh instead of a 17x17x1 mesh.