Yes, it appears to have gotten corrupt somewhere along the way. Removing the profile's "map", "map download" and "map.xml" files/folders (probably overkill) and restarting/redownloading mudlet appears to have fixed it.

I've been using Mudlet successfully for a few months now, but I've run into some problems with the mudlet mapper functions. Particularly, Imperian released new underworld areas, but for most of these areas the only thing that mudlet shows in the mapper is a white screen. Curious, I looked into the ...