Apple Keyboard (2007): Right Shift key doesn‘t work with Kotoeri shortcut

Issue or symptom

The right Shift key on an aluminum Apple Keyboard (2007) does not work when using the Kotoeri shortcut (Option+Shift+Fn+F5) to switch to 'Romaji' input mode.

Solution

The keyboard functions as designed. Please use the left Shift key of the aluminum Apple Keyboard to use the Kotoeri shortcut to switch to 'Romaji' input mode.