Solved
Sims gone in every sims save file,
Product: The Sims 4 Plattform: Windows MSI gaming computer Which language are you playing the game in? English How often does the bug occur? Every time (100%) What is your current game version ...
@elsapheonix Please try removing your mods and recovering a backup save at the same time, as in, you're loading these backups for the first time, while there are no mods present.
https://sims4.crinrict.com/eng/2014/09/recover-backup-save-game/
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