I'm using 7.9.3, and when I copy part of a schematic from one project onto another project, the symbols are getting renamed. Both projects are pointing to the same library. Renaming the symbols is causing all sorts of problems, as you can imagine. Before I do the copy, I did a Tools -> Update Symbols....so it is not that the symbol was out of date. This is happening on several projects - so it is not project-specific.