Tried to do the Langmar Estate guild puzzle today. Three times.
It went fine until we got to the part with the toxic fumes. No fumes were visible, though you’d die if you went down to where it usually is. The switches didn’t work, the event didn’t start. The oozes didn’t spawn, and neither did the build things on the “bottom floor”.
Some people managed to port through the gate, but since the event hadn’t been completed, there was no reward.