label inside a list layout

Take the following label:-

                                    

<control type="label">

  <left>30</left>

  <top>410</top>

  <width>540</width>

  <height>208</height>

  <font>PlotFont</font>

  <textcolor>TextBright</textcolor>

  <align>left</align>

  <aligny>top</aligny>

  <label>$INFO[ListItem.Plot]</label>

  <wrapmultiline>true</wrapmultiline>

</control>

When placed inside a window the <wrapmultiline> works as expected, however once place inside a list's layout it fails and I just get a single scrolling line of text.

Any ideas?