After saving and quitting my survival world, I load world and all my build is gone, like the game loads a different save time instead of most recent save, therefore loosing everything I have built. Also, when loading my profile on another Xbox and transferring world that has been saved, I get the same issue, where I'll load it up and it'll load from a later save and won't load what I have currently done. Therefore deleting any progress I made previously...
Short term of saying, I built a castle fully decorated on top of a mountain, I saved and quit the game, loaded it maybe a day after and when the game loads, the castle is gone and it loads to before I created castle. And loading profile on other Xbox, and uploading worlds to other Xbox from my profile, is the same issue.