Reported about 1 year ago
Recently, many users have found that when using the communication app LINE for texting, if they don't specifically select a word before sending, it will directly send a bunch of Bopomofo symbols, a situation that did not exist before. With the recent 14.10 update, LINE has fixed this issue. Users had been troubled by the problem of sending out excessive Bopomofo symbols instead of the first set of recommended words when using Bopomofo input method. LINE has acknowledged this as a bug occurring in iOS LINE versions 14.7.0 and above, and has released the latest iOS version 14.10 update to address this issue, urging users to update promptly to avoid further inconvenience.
Source: YAHOO