Does anybody know what the issue with a bug I've been seeing in the Palace of Shadows level is? I've got a link to a YouTube video of mine showing the area. The shadow skulls in this area are not showing up like they should. I spoke about this problem before, but I think this video will clear things up.

http://www.youtube.com/watch?v=4w4p7QOc8JY

I would suggest skipping ahead to 4:30 in the video to see the affected area. I end up destroying the shadow skulls even though the bug is present.