Had you run Cube recently?
Because I have had instances where I have ran Cube, left and died shortly after and been ported back into Cube. Not sure why this happens, just a bug within the game, but not related to NW. Usually happens when I port out for PK, die, then it knocks me back into cube. Again, just a bug I believe.
Was unfortunately that it ported you out of NW. You could've jumped into NW with another char though, but I understand the frustration, since you probably wanted the tokens on that char.