Was there as well yesterday, my daughter got to open the park so we were about the first on Gringotts, lol ... but the ride immediately broke down on the first screen, wen through the drop and coaster portion, then were stuck in front of the first screen for 10 minutes or so, then the ride worked again, but we were stuck just after the final screen for another 10 minutes or so. We were given a return ticket which we used a little later on, ride was running smooth again, immediately decided to go again since the posted wait time was 30 minutes, but in reality it was almost walk on. There was a 5 minute breakdown just before we got on the RV, but then it worked great when we rode it.