vast spade
Autosaves are just random, you might do somethings then have to re-join from a bug to find your all the way before where you were.
For example, ENDING SPOILERS
||I finished doing everyone's simming ending but Leaders and Inventor, but then I suddenly fall through the floor in the furnace as Leader meaning I have to reload my game due to me not being able to grab my walkie talkie.
After reloading my game I'm all the way where I just finished Scouts simming ending.||
So my idea is when you unlock such things as keys, or keycode doors the game will autosave, and auto save on leaving the game.
So if you reload your game after unlocking the yellow key without saving from the treehouse, they yellow key will be found unlocked still.
*Hopefully this will be added because it would of came in useful many times, but I love the game so far! 
✨ *