Xbox One: Lego Avengers - unable to load saved game

(Note: This is for Lego Avengers, not Lego Marvel Superheroes. Lego Avengers was not an option in the dropdown.)

I have been playing Lego Avengers on my Xbox One for 6+ months. Today, when I went to load my save game, the game was displayed normally (45% progress). However, when I clicked to load the game, it started at the beginning:

...

1. I Pressed A to select Load Game. My game (45% progress) was listed in Slot 1.
2. Pressed A to load the game.
3. Pressed A to confirm loading game.
4. Screen got to Load successful, then said that autosave will be in Slot 1. I pressed A.
5. Instead of starting where I normally do with this saved game (in Central Park), the game restarted: pans to the sceptre, Maximoff's holding hands...after the opening scene, it gets to gameplay (Hawkeye and Black Widow in the snow). If I quit at that point,
   it just takes me to the game start screens.

I have made a system change since I played last -- added an external hard drive. However, since I have done that I have been able to successfully load saves from a different game (Fallout 4). Did adding the external hard drive cause a problem for Lego Avengers?
Is there a problem with my saved game?

Please advise.

Thanks!

:)

 

error code 0x80070001

Trying to load new lego avengers game and says installation. stopped. Any clues?

 

Lego Marvel save problem.

mine problem is that i saved my lego game at 10:00 pm and when i try to load the game, it showed i have saved it at 2:00 pm. Both my lego games got this issue on xbox one