Grounded Not Loading Save Files

Try this:

Copy your save file of the world that won't load to another source, (USB, cloud, etc). Delete the original save file, and remove Minecraft from your console. Clear your console's cache. Redownload, and reinstall Minecraft. Copy the save file back to your
console. Now try loading the save file.

If it still freezes, that particular save file may be corrupted. Try creating a new game or loading a different save file. Is the freezing limited to just one save, or does it freeze on all saves?

I have also experienced this problem. When profile A is signed in save file A is loaded. Then profile B signs in and instead of loading save file B it overwrites save file B with save file A. Huge problem. With no way to back up our save files to fix this
issue when it happens we are essentially restricted to one profile per console.

I've been doing that with NBA 2K11 as well. Yes it takes up memory, buy having 2-3 saves will save you a lot of headaches if one of the files get corrupted. Player 2-3 games and then save in both File 1 and File 2. Then load File 2 for 3-4 games and do the
same thing again, but use File 1 again when loading the save.

Can not believe this still has not been resolved yet. Looks like it is a bigger problem than we first thought.

Here is a link to a discussion on this very issue over at Halo Way Point. Save file not loading - corrupted save file - Games / Halo Infinite - Halo Waypoint

I had the same problem; it's not a disc problem but a corrupted save file. It made it so that my xbox wouldn't load any of the save files from my hd, even the ones that aren't corrupt.

So i just went into system management and copied one of the older save files to another location and loaded from there. (I probably could have also gone into system management and deleted the corrupted save and tried loading from the HD.)