Has anyone had an issue with the game freezing and corrupting and resetting the trophy information. Ive lost thieves, brotherhood, and almost all of the misc, level trophies. if so does anyone know of a way to restore info other than an endless replaying, data loss, replaying loop

Ive found that after syncing my trophies online ive only lost what i earned since last syncing. if your concerned with this its prob a good idea to sync the trophies every once in a while especially after earning major questline trophies