Old Core Data Sync in to CloudKit "iCloud"

The pre-existing data does not sync. Only the newly-added data syncs. What I am doing is creating a struct for every core data entity, stuffing those structs with the core data and then going from structs to core data. My app is old and its store file is in the Document directory whereas the new store files are located in the Library directory. Do you think that your app is that old?