After Effects - Stuck in fullscreen and toolbar is off screen - MAC

I read this in the AE forum with the same problem and an Adobe Employee posted this:

@stefan_gru wrote:

This happens to me on occasion as I move from large monitor to laptop while on the go. Just press Command+\ (macOS) and everything will snap into view on the smaller monitor. I assume Control+\ does the same thing in Windows. This works in Premiere Pro too.

Also, I found this:

@Byron Cortez wrote:

1) Close After Effects.

2) Set your screen at resolution you want.

3) Shft  + Alt + Cmd immediately when you click in application icon to run it, clic OK.

With this action you clear the preferences and when AE opens it's gonna be ok in fullscreen.

Hope this helps.

Hello, I also got this problem, but it just suddenly happened when I was editing something, and I tried using Ctrl+Alt+Shift, and I also tried Ctrl+/, yet none worked. 

Can I get any help on this?

This happens to me on occasion as I move from large monitor to laptop while on the go. Just press Command+\ (macOS) and everything will snap into view on the smaller monitor. I assume Control+\ does the same thing in Windows. This works in Premiere Pro too.

It sounds like you need to reset the preferences.  This is from the After Effects manual:

To restore the default preference settings, press and hold the following keys while the application is starting.

• Ctrl+Alt+Shift (Windows)
• Command+Option+Shift (Mac OS)