I need a help

[Skywhaly]

I'm saving part of my works in creative cloud and today I opened ai file and huge part of artwork is disappeard. I still can see their silouets when I open layer menu. But I can't change neither color or line. Is this happend because of saving faliure into CC storage or this is some kind of bug? Maybe some of you know the answer  ^-^ 

[Monika Gause]

Have they been clipping masks?

[Skywhaly]

Nope, I've checked. When I'm trying to drag it, comand window says "There is no option to drag object. Comand canceled". So I'm suppose that this is the saving file failure. Thank you for anwser.