Interesting to pop into a dungeon and see this

Silent_Paw · May 2014

stared at this for awhile thinking it was just a glitch but i popped in and out of the dungeon 3 times and it was still there

vyal · May 2014

Yep, part of the main quest line, too, which is unfortunate.

zytukin · May 2014

eww, that is weird.
It's like a texture wasn't included with the client.

Or, the opposite, server side the (i assume) rock has a typo in the name of the texture it's asking for.