I can confirm this. No pre-show on our visit last Thursday and Friday. Also, Igor not working, Wolfman not working, Dracula at the end not working. Overall very disappointed with the ride.Getting reports of LOTS of effects broken on most of the rides. Monsters, for instance, running with no pre-show and half the animatronics frozen.
There is one thing I firmly believe Universal has been doing better than Disney since Potter, and that is keeping the effects on their attractions working. So to hear reports of lots of effects broken on almost every ride at Epic is... concerning.
Harry Potter had several effects not working. Umbridge's AA didn't disappear like it's supposed to, so she was on screen and still visible as an AA at the same time. And most of the trial scene did not light up like it's apparently supposed to from the POVs I've watched since returning home.
Hiccup is completely stationary on the coaster.
Several figures not working on Yoshi's Adventure. Several broken figures throughout Super Nintendo World, including the Koopa at the mini-game and the Goomba at that mini-game. The piranha plant mini game is completely broken. Yoshi was not walking around the tree on Mt. Beanpole and the tower of goombas was not moving.
Cranky's mouth is broken in the queue to Mine Cart Madness. The car did not have on-board audio.
The park's restrooms and outdoor seating areas were filthy. I don't think I ever saw a single custodian the entire trip.
The operations were as slow as a Six Flags park. It should not take 40 minutes to reach the load area of Mario Kart after exiting the pre-show. I will not be returning.