So I have noticed that inside of LFR HFC, the second queue option, that the door that normally leads to the first two bosses of the instance is bugged. Specifically, I think it might be an lod bug ir something as crossing what looks like a hole instead loads everything past that invisible line of sorts.
Crossing over the pit loads the other side visually and makes the first side invisible. It does some weird camera stuff and I figured it was worth sharing. I know its legacy content but still surprised me to see.