hi so i can't do my third job advancement ( as a mage ) i talked to the person in el nath, then to grendel, but when i click on the door of dimension in the forest of evil, it says i have no reason to approach the portal. womp.
It's not bugged. There are 5 Doors of Dimension, you didn't read your job instructor's instructions properly. Read the instructions again and go to the map that they instruct you to go to.