With the recent giant overhaul of several areas, alot of your maps will be invalid/incorrect and may look odd or weird (aka showing directions you can go but you cannot). This is because client maps are cached locally and do not know that the server rooms have changed.
There are two things you can do.
1. Attempt to map the area based on the movement. Once you map out everything in the new areas it will fix itself. You won't lose maps this way but it's a bit harder as you cannot rely on your minimap until you map out everything.
2. Clear your map cache and start again. This will solve it and is the easiest of the two, but you lose all maps.