We're receiving reports that players are seeing graphical glitches or display issues with the in-game mini-map; it's not intended for there to be any changes to the mini-map at this time, so we will be investigating the cause and working on a fix ASAP. If a workaround is found, we will post again with more information

EDIT: If you are having this issue, please try switching regions to resolve it (eg travel from Britain to Minoc.) We'll continue to investigate in the meantime.