That one takes the cake. Never seen rings around a black hole, let alone ghost rings. I sincerely hope that's an example of the engine being complex enough to simulate an object being caught in such a fast orbit around the black hole that it disintegrates.
Going to have to quickly clarify and edit my original post, the rings orbit a gas giant. The parent stellar object in that system is a black hole. Unfortunately I have never run across a ringed black hole, but I'm on my way down again so I'll keep an eye out.