For me the latest version of Fcitx works fine. I tested on Ubuntu, but
AFAIK it should work the same way as on Debian. So it's possible that
nobody who saw your bug report can reproduce the problem, and given that
you provided very little information about the circumstances, it's hard
to proceed.
So I think you need to provide some details. To start with, do you know
that Fcitx is running?
ps aux | grep fcitx
If it is, and even if the shortcut doesn't work, can you switch to an
Fcitx input method by clicking the Fcitx icon?
--
Gunnar Hjalmarsson
https://launchpad.net/~gunnarhj