We've organized our RBS based on our Reports-to structure. We have nine levels of nodes with this configuration. What we are now seeing is that while the RBS fields look fine in Project Web App, some of the Nodes and trees of the RBS structure display with the wrong parent entries in the Project Client.
In PWA, the RBS shows Bob.Lynn.PJ, but in Project client it shows Bob.PJ (Lynn and PJ appear as peers instead of parent/child).