Thanks for your report! I recall the Ask Ubuntu question https://askubuntu.com/q/1053182 where the solution was to empty the cache folder:
rm ~/.cache/ibus/libpinyin/* Can you please try that and let us know if it makes a difference? ** Changed in: ibus-libpinyin (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ibus-libpinyin in Ubuntu. https://bugs.launchpad.net/bugs/1806402 Title: Chinese input fails to input if you don't select 1st candidate and persists Status in ibus-libpinyin package in Ubuntu: Incomplete Bug description: 1) Ubuntu release Description: Ubuntu 18.10 Release: 18.10 2) Package version ibus-libpinyin: Installed: 1.10.0-1 Candidate: 1.10.0-1 Version table: *** 1.10.0-1 500 500 http://my.archive.ubuntu.com/ubuntu cosmic/main amd64 Packages 100 /var/lib/dpkg/status 3) Typing pinyin and selecting first candidate works. Selecting another candidate results in inputting the number of the candidate instead of the Chinese character. Chinese input also fails to continue working until you switch back and forth (Pinyin -> English -> Pinyin). 4) Being able to select and input all characters displayed in the candidate window & Chinese input continually working. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ibus-libpinyin/+bug/1806402/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp