I was doing the “A Spiders-eye View” quest, I got called in for a dungeon (through LFG) and clicked on the Shadecaster, which began a cutscene. I got ported right in the middle of it and had no movement anymore.
Left the dungeon, ported back to world and the cutscene was done, but my character was still stuck. It only got “resolved” when I logged out and back in.