Originally Posted by CuttingEdge
I got rid of the old Goodreads plug-in, but Modify ePubs is not changing old cover to new Calibre cover
Logfile for book ID 2559 (Insomnia)
Modifying: c:\users\lam\appdata\local\temp\calibre_0.8.25_tmp _doihzx\xlbp9i_modify_epub\2559.epub
Updating metadata and cover
ePub updated in 0.54 seconds
Modify ePub can't modify covers that aren't properly defined (which unfortunately is true of many ePubs). What you need for this case is a cover insertion feature, which is on the to-do list for the plugin but probably won't be implemented in the near future.