[vegasarian] “Delete the original thumbnail.”
That’s the step that is breaking the links because you are taking a way the reference media.
Instead, start by dragging your media to the Project Overview window, then right-clik it and choose scene selection.This will keep everything over on Project Overview. Then drag what you need over to the menu(s).
Gary Kleiner
Learn Vegas and DVD Architect
http://www.VegasTrainingAndTools.com