Why does my project keep getting messed up?

Every time I go to open my project some of the actors are clear and all weird or something. I open it and close it again but every time it is different actors that are clear and sometimes it is all of them. this wouldn’t be a big deal if this only happened once since I am a beginner and I was just trying to learn how to do some stuff, but this has happened twice because I deleted my project and started it over in a new one. Sorry that this wasn’t too descriptive but I had wrote a much more descriptive one and it was super long but there was an error when I went to post it so I had to start it all over. So, please help me.

Let me guess. You were logged out as you were about to post? That’s happening to me at least…

What do you mean by “clear”? A screen shot or a video would help.

EDIT: you have got to be kidding me…