I created a master project with 2 subprojects on my C-drive. For the major milestones I built a timeline that shows all the time intervals and selected milestones for both projects. Then I copied the separate projects and a combined master project to our SharePoint SITE (SP 2010). Now, when I open the master project, time intervals and milestones only being displayed for 1 project. On my C - drive I still see the complete picture. How do I make the disappeared milestones to return to their proper place on the combined timeline on SP site without redoing the timeline again?