Can no input Japanese character from Beta-2

Hello , this is the first time to post. If the posting have some lack of information or something , please kindly let me know.

----------
From Beta-2 I can not input Japanese into every text lines. Alphabet is OK. but as you may know , Japanese language has special way to input Japanese. While using Japanese input mode , no character is input in the text line.

This problem is not in the Beta-1 as well as current V1.3.

best regards