Why can't I write the character 台 in my pinyin input method? I'm on Linux and using Sunpinyin and Linpinyin input methods. In both, when I input "tai" I never get any suggestion of the character that I somethimes want: 台. I must be doing something wrong, but what? How do I write 台?

When I try to input it I get all other characters "tai" but not 台. I'm on Xubuntu 16.04 and using a libpinyin based input method in fcitx.



I changed to iBus input method with "Intelligent pinyin" and there everything works as expected with "tai". Seems like it might be a bug in the version of Fcitx that's in the Debian repository.
I have Ubuntu 17.10, and using the Sunpinyin, it comes up right away as number 1 or 2: 

What is your particular Linux version?