@bobbytung reports the following: In mono-ruby case when you select and copy certain text with mono-ruby, the last ruby texts will not be selected. For example: <img width="83" alt="2018-04-19 9 49 34" src="https://user-images.githubusercontent.com/4839211/39482479-182710f8-4d67-11e8-9f82-3e5436e14b1c.png"> After copy and paste, you will get "火ㄏㄨㄛˇ星". "ㄒㄧㄥ" is not copied.