The problem with the nature below is still there after upgrading to 18.10.
> The custom binding of Ctrl+Alt+G to
>
> gnome-terminal --geometry=80x99-0+0
>
> is missing more frequently, than the custom binding of
> Ctrl+Alt+Backspace to
>
> gnome-session-quit --power-off
>
> Does this help to locate the problem?
The problem with the nature below is still there after upgrading to 18.10.
> The custom binding of Ctrl+Alt+G to 80x99-0+ 0
>
> gnome-terminal --geometry=
>
> is missing more frequently, than the custom binding of
> Ctrl+Alt+Backspace to
>
> gnome-session-quit --power-off
>
> Does this help to locate the problem?