We have an issue where numerous projects (X,Y,Z) require an LOE activity to span the start and finish milestones of their relevant project. These LOE's are then all dragged to a single common project (B) for management use. When Project B is scheduled (to a data date in the past) the LOE activities disregard the logic links to their respective external projects and sit on project B data date. This only happens when projects X,Y & Z are closed and project B is open. When projects B,X,Y & Z are all open then the LOE's respect their logic links. Why dont the LOE's honour their logic to external projects when those external projects are closed?