I don't think so. Here's another screenshot showing the parkour boxes in the distance if you have Bobby/Distant Horizons (client-side mod for increased render distance). The cyan one is the Maze Manor.
There was a camel stuck in the ground at the camel thing, and I got teleported under the build when I tried to mount it (the camel went back onto the rails at the same time)
Yeah, ulti had that happen too, but I was unable to replicate the issue. There should be a TP sign down there back to the surface and you cannot escape to the rest of the outside of the map, correct?