I have assigned custom shortcuts to the swap_line_up/down commands. The shortcuts are alt+up_arrow and alt+down_arrow. These shortcuts are also used by Mac OS X to navigate to the beginning, respectively to the end of a list of files in Finder or in Open or Save dialogs.
The problem appears when I try to "Save As..." a file or project and in the opened dialog I try to use the system's shortcut. Sublime seems to intercept the keystrokes and doesn't let them bubble to the OS although the editor doesn't have the focus anymore.
Customer support service by UserEcho