Please I'm desperate with UE5.6.1

I'm currently working on my first project, and idk if it's a bug but all my files keep being hidden! When I go to the folder they are there and when I move them they do appear again, but now they are all broken up when the day before I left them working.

It's so exhasperating not knowing what to expect... I've re-done the same things lots of time, is there a solution or way to reload them so they appear and don't break???

PLEASE help