Shift-Cmd-5 not working; gives the "doesn't work" sound
I just downloaded macOS Mojave and when I tried the Shift-Cmd-5 shortcut for the screenshot menu, it did not work. It simply gives the "doink" sound that occurs whenever you are not allowed to press a certain key.
I have a 2016 MacBook Pro with touch bar, space gray, max specs.
I have already tried restoring default keyboard shortcuts and restarting the computer multiple times.
MacBook Pro TouchBar and Touch ID, macOS Mojave (10.14)