The first thing I would try is changing that light blue to a really bright color that may show up when you go back through looking for it.

Allan – I have had problems with Indesign crashing for years after the page count gets that large. I usually split my large catalogs into two or three files, then export as pdf files and merge there. I’ve also learned over the years to keep all my current “links” for the current year’s catalog in one folder (package the finished catalog and save the links folder as your master for the year). That enables you to link product photos quickly when you do a copy/paste and the link doesn’t follow. It also sounds like your styles palette may have conflicting settings. When you copy/paste it usually brings the existing styles into the new document, those would need to be checked/redefined. Hope this helps, I’m no help with hyperlinks or easycatalog, sorry.