It is common for a user to create a new version of an IP core by recustomizing an existing core; changing the Component Name field and then generating the new core. If a user starts this process and cancels the generation of the core, the new IP core name is listed in the project IP list, but no files for the new core exist in the project directory.
Additionally, the console reports "Finished Regenerating", when it should report "Cancelled Regenerating".