MCCC LE

@GiorgioFrankens For your first issue, you've either deleted CC or you have a pack that isn't loading properly. For the second possibility of these, there's a pinned topic in https://answers.ea.com/t5/Technical-Issues-PC/bd-p/The-Sims-4. Generally what you need to do is exit without saving then go to Origin and look for packs that need to be redownloaded. If you saved, you can load an earlier version of the save that hasn't lost hair. If you need more support with a pack not loading, head to that forum.

For *this* forum, you can upload that html file here or click its link to get support from the creator of MCCC.

But if you have invisible Sims, there's a high chance that you have out-of-date mods/CC. To test for that, you can do this:

1. Exit Sims 4 then drag your Mods folder to your desktop.
2. Then delete the file called localthumbcache from Documents > Electronic Arts > The Sims 4.
3. If you think you might accidentally forget to exit without saving after testing, copy your Saves folder to your desktop too, to back it up.
4. Now open Sims 4 and see if you still have the problem.
5. Exit without saving or do a "Save As" and name it "test save"

NOTE: This will only help detect mod/CC problems. It won't help with an issue of a pack not loading.