I think this is more to do with your game progress not being saved instead of a bug because it wasn't reported in and I'm the first moderator responding to your post here. Going forward, I will advise you to make sure you're playing on a reliable connection and try the suggestions under section Sync Issues in Chapter What can I do to resolve my game issues? in Game Guide.
Good luck with your goals. Feel free to post in the new bug thread if you have more questions or issues. I will be closing this thread shortly.