If you press ctrl+z while on a page. Everything on a page disappears, the only thing that can save your content seems to be if the file was open in an editor at the same time, so you can undo from there.
Could be an OS issue. At least on Windows and Linux ctrl+z is a common shortcut for reverting last change. But reverting the whole file back to a blank is a bit extreme.
If you press
ctrl+zwhile on a page. Everything on a page disappears, the only thing that can save your content seems to be if the file was open in an editor at the same time, so you can undo from there.Could be an OS issue. At least on Windows and Linux
ctrl+zis a common shortcut for reverting last change. But reverting the whole file back to a blank is a bit extreme.