Oddball Worls map glitch

I noticed something just south of Dlssio Seaboard......
*first 2 images deleted due to people PMing me endlessly*

I think you just found a dungeon entrance that's been covered up

Or you've found a mistake where the new map has been laid over the old one.

Yeah it was probably just that, they overlaid updates onto the original one in their art and didn't catch that. Also some may notice that some of the arenas are gone now (fire island arena and maguuma arena as well as the competition arenas) if you had them opened up previously. It didn't affect my cartographer rating, but they're gone for good now. The desert one still appears to be there though, kinda odd. It looks nice though :-) definitely a change. The body of water around Giant's Basin was altered, didn't have an outlet before. Looking forward to GW:EN...