I'm using boost 1.31.0. I've experienced and observed that other fokes found this problem with subgraphs and internal properties. Derived subgraphs only get internal properties produced by default construct. What I'd like to know is if adding an edge to a derived subgraph via: add_edge(vertex_descriptor u_local, vertex_descriptor v_local, const EdgeProperty& p, subgraph& g) will get the property sent to the ancestor graphs? Are there any other "bugs" associated with adding edges/vertices to a derived subgraph?