[Draenin]

I actually started to get this error as well since the last client update. I don't know if anything was recently changed, but even when I install a fresh copy, I get similar messages.

While the posted fix does work, I still can't seem to get custom tilesets working again on my terrain maps, which need to be edited soon.

I have cleared filenamecache.txt, checked image color depths, and loadgmaps.txt, and still haven't been able to fix it yet.