Same problem for me maybe. I have a Japanese keyboard but installed Trusty in English (my mother tongue). The indicator no longer shows up when I am in English input mode. I can only switch to Japanese input by the shortcut (shift-super-spacebar). When I do the indicator appears but as soon as I switch back to English (same shortcut) the indicator disappears.
Same problem for me maybe. I have a Japanese keyboard but installed Trusty in English (my mother tongue). The indicator no longer shows up when I am in English input mode. I can only switch to Japanese input by the shortcut (shift- super-spacebar) . When I do the indicator appears but as soon as I switch back to English (same shortcut) the indicator disappears.