How do I uncorrupt Skyrim saves?
Highlight The Elder Scrolls V: Skyrim Special Edition from the Games category. Press [Menu] on your controller and select Manage Game. Navigate to the right where the Saved Data is located and highlight Reserved Space. Press [Menu] on your controller and select Clear reserved space.
To determine if the saved game is corrupted, follow these steps:
Why can’t Skyrim save Xbox one?
Go to Games>Saved Game Utility. Within the menu, delete any corrupted save files. These files can be created from Skyrim and other games when a game doesn’t save properly (shutting down the console before an autosave completes, etc).