[XB] Game not fully saving, Saves show as autosave

Product: The Sims 4
Platform:Xbox Series S
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.97.2.2300
What expansions, game packs, and stuff packs do you have installed? Cats & Dogs, City Living, Seasons, Get Togther, Cottage Living, Discover University, Eco Lifestyle, Get Famous, Get to Work, Growing Together, High School Years, Island Living, Snowy Escape, Lovestruck Game packs: Dine Out, Dream Home Decorator, Parenthood, Realm of Magic, Werewolves, Vampires, Spa Day Stuff Packs: Bowling Night, Home Chef Hustle, Kids Room, Laundry Day, Luxary Party, Moschino, Movie Hangout, My First Pet, Nifty Knitting, Paranormal, Romantic Garden, Spooky, Tiny Living, Toddler, Vintage Glanour Little Campers kit
Steps: How can we find the bug ourselves? I’m not sure. It’s on the load screen
What happens when the bug occurs? Two of my save files have been renamed “autosave” (not by me), despite never using the actual autosave, and when I load the game it reverts to an earlier save. Unable to make new saves without the same thing happening
What do you expect to see? I expect to see my saves named what I named them, and more importantly be able to load my most recent progress instead of it reverting to an old save. I should also be able to create new saves without this happening. I’m very careful about rotating saves for this exact reason but it has affected all my saves for this particular game/family
Have you installed any customization with the game, e.g. Custom Content or Mods? On console - never used.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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I use two rotating saves for my current game and when I opened them tonight they had both been replaced and renamed “autosave.” From the save icons it still looked like my most recent save (two kids had aged up to teen) but when I loaded it the save had reverted to the earlier save from this morning before the game renamed it “autosave.” 

Hypothetically no big deal since I’d only lost a couple hours of gameplay, except when I created a new save and named it “testing” that too was renamed “autosave” and now there are three saves named “autosave” in addition to the actual autosave at the top. I never use the autosave due to a glitch I ran into in the past so this is bizarre. 

I really hope there is a solution and my whole game is not corrupted. I’m on baby 30 of the 100 Baby Challenge ☹️

My other game files (different games:/families) are unaffected. It is only the game/family I played today but now I’m afraid to play it at all.