gistfile1.txt

Entering this into WYSIWYG:

{{ files:listing folder="6" }}
<a class="fancybox"
   href="{{ files:image_path id='{{ id }}' }}"
   rel="group"
   style="background-image:url( {{ url:site }}files/thumb/{{ id }}/150/150 )">
</a>
{{ /files:listing }}

Submit page. Brings back:

{{ files:listing folder="6" }} {{ /files:listing }}

Works totally fine when submitting, as in, the page shows it properly. But going back and editing the page, the contest of files:listing are gone.

If I leave the style portion out, it works just fine. I'm guessing it's the colon.