Re: sims 4 game mods/saves suddenly not working

@GalaxyMelons  Please make sure that you're adding your mods to the correct Sims 4 folder.  Go in-game and look for the folder the game is reading:

https://sims4.crinrict.com/eng/2018/07/how-to-find-your-user-folder/

And compare its file path to the full file path of the Sims 4 folder you've been working with.  For the latter, right-click on the folder and select Properties, then look under General for the location.  (The file path in File Explorer doesn't list the username, hence the need to look in Properties.)

If the file paths don't match, you have your answer.  If they do match, please let me know whether you use a third-party antivirus or any kind of cleaner app.