Unable to Copy Game

Title is self-explanatory. I'm unable to copy any aspect of my game whatsoever. Search function indicates that this has been an issue for a very long time, for games smaller than mine, but only recently started having a problem with it despite minimal size changes. I've also chosen not to copy over Players, Player Settings, Decks, Chat Log, Journal, or Jukebox and it still fails to copy. I've also done the same without Pages and including Journals, or including Jukebox and nothing else, etc. Nothing works. Really looking for a solution, because with over 100 players, we need about 3 tables to run the games effectively.

Note for future travelers/my fellow Supergroup Owners: I fixed this issue by kicking some of my inactive players, dropping from about 130 or so players, down to 110. I also chose not to copy over the pages. My suggestion would be to make a zip file of popular maps for your GMs, assuming you have more than one, or using the Transmogrify tool to transfer over the ones that you use the most(in our case, just 3 - a world map and an arena map). Obviously Journal Entries for characters are the most important tool for us.