Ranged LB not working on slopes
Like someone in the JP forums mentioned, the ranged LB doesn't hit your target when there's a slope involved.
http://i.imgur.com/NHTCQ56.png
Top bar: The current state of LB aoe
Bottom Bar: Ideal LB aoe
This has pretty much existed since the start of FFXIV, with people exploiting Twintania's divebombs in a similar fashion by making use of a slope. From then on, all Boss fights occurred on flat ground to cover up this fault.
Is it difficult to factor in height into the code/program?