Only first launch of ibus is running

[skys215]

I'm on Ubuntu 13.04 with ST3.
I can successfully start ibus on the first time I Hit Ctrl+
But after I switch to other window and when i come back, ibus is gone.
And I can't launch again with the key Ctrl+.

[skys215]

OK, then. I see that I still can type.
Just there's no ibus icon showing on the system tray.

[nwjlyons]

I am also having this problem.