frame view disappears from editor

[ajp]

I had been working on a frame for a couple of hours and when I went to jump back to it it was invisible. All the events and objects show up, as do the other frames, but this one frame in particular has disappeared from view. Is this a known bug or did I do something wrong? Any assistance would be greatly appreciated.

[Game_Master]

Do you have the latest build ( Build 247 MMF2 Developer or Build 247 MMF2 )?
You may have acciedently deleted it somehow. You should save every 20 or so minutes so that if something like this does happen you can just do 20 mins work to restore it.

[ajp]

I just installed the latest build before starting my work. Could it be because I didn´t restart my computer after installing it?

[neat_Kliker2]

enable it in the view menu if you mean a toolbar / window is missing