I'm not sure what is going wrong here, whether it's a bug or if it's something that's going wrong that I'm doing:
<img src="http://img543.imageshack.us/img543/6189/ae11470134794768926df84.png" border="0">
On the left is the editor preview version, as you can see the green ghost and blue/gold chest are rendered properly. On the right is the exported version (running from my site) which doesn't seem to show either of these sprites correctly. I'm using a 'master instance' layout as a place to have all of the items/characters that will be instanced elsewhere; this system works for all of the other objects, besides these new ones.
Sorry guys, I've removed the capx since I solved this issue :)