version 65.0.3299.0 (offical build) dev (64 bit)
Platform 10315.0.0（official build) dev-channel link 
Firmware Google_Link.2695.1.169


REPRO STEPS:
1.Focus on any inputbox
2.Switch to Traditional Chinese/Cangjie/Quick...
3.Tap any keys, e.g. 'n','i','h','a','o'.
  
Actual result: 
No candidate pops up, and 'nihao' is submitted automatically.

Note:
Also repro for Floating Keyboard.
This issue not repro for Pinyin/Zhuyin
 

Deleted: Jan 17 2018 4_21 PM.webm 1.5 MB

	Jan 17 2018 4_21 PM.webm 1.5 MB View Download