I was just working in After effects and some time I press in the wrong key or at least a key that I don't know what the function is. So I am working in my composition and I accidentally press the control button and some other key of which I have no idea what that key was! And boom everything disappeared, can't find anything? What in the world did I press? Any ideas? Thanks for the help!
try resetting your workspace by going to the menu window>Workspace>reset workspace