The problem seems to be in a thread somewhere. I can export characters (no chats) and import that fine. I can import both pre-mem and post-update threads individually.
But when trying to export all characters + chats, something is breaking in the import. Could be one specific thread of mine ruining the batch?
If you’re still having a problem importing files, is there a chance you could DM a non-working file to the Dev? I think they believe this issue is resolved.