The files will open in Scrivener 3 (files originally made on an old version of Scrivener) but though I can see character card names I did, nothing else came over. It opens up into the novel template default text and outline, but everything else I know was in there is blank and empty! The main manuscript and character notes didn’t seem to come over.
This is on a Mac and the files were initially made on a Mac. How can I resolve this?
And is the copy of the project sitting on your iCloud drive or in an active Dropbox folder? If it is in some cloud-synced folder, trying moving it to your desktop (or any unsynced folder) and open it from there. (You may otherwise need to change your cloud-sync settings so that your scriv project files are never stored “remote only” by your sync service – because that is one way to get the unsettling effect you are seeing).