it did not work for me after doing a quick resume on Xbox Series X

Here is a temporary work around that I found on reddit from adsefc1. It worked for me the one time I tried it, but it did not appear to work for everyone:

1. Once you have finished playing, change to another operative and go back to the open world

2. Go to options and change a setting (I changed a receptacle option) and then backed out to open world

3. Go back to options and change the same setting back, go back to open world

4. Open the menu again and quit the game

5. Go to your dashboard / home and quit the game so it’s no longer in a quick resume state (click 3 horizontal lines on controller when game is highlighted on dashboard)

6. Reload game as normal

@future106 I lost over ten hours of game progress and got started with the construction worker mission again. Played 2 more hours, went to the main menu and tried to start campaign again in an effort to save. Only option was new game. Went to home screen, quit then relaunched the game. "Load game" option was back, but the last 2 hrs I played were gone. Back to the construction worker mission again. I'm done until I hear about a fix for this. Ubisoft, just add a save game option in the menus next time!