I want to go back to my level, accidentally the game changed to the old level

A timestamp on what save was from when would have prevented this issue altogether, I too have seen this pop up, a notice asking me to chose between 2 different saves, im not even sure if I lost data when it happened to me, I do not think it's fixable once we chose to load one or the other. They have no timestamp though to tell which is our most recent save so we are left choosing blindly.