You should really warn people of spoilers as those who haven't yet played the game might not want to know the storyline. I edited your title for you
edit: now that I've had some sleep and can make more sense of your post I'll attempt to address your question:
The world map popping when you walk to the edge is a feature, not a bug. Once it has popped you can simply point to the location you want to go to and click. This way you can avoid a lot of unnecessary walking - for example, if you want to go the Cleric's Ward from the Ragpacker's Square all you need to do once you go to the edge of Ragpacker's Square is click on Cleric's Ward on the map. You don't need to go through the Trash Warrens and the Hive like you did previously.