instrument names for grandstaves

[胡海鹏 - Hu Haipeng]

Hello,
  I'd like to engrave some percussion sections for separate players. The groups have their name for player numbers, and the individual rhythmic staves indicate names of instruments. However, even though I include the engraver, the file attached doesn't generate group names into the pdf. I know this because I converted the pdf into text. Could anyone point out what's wrong?

Regards
Haipeng

 

---

全国最低价，天天在家冲照片，24小时发货上门！

i.ly
Description: Text Data

i.pdf
Description: Adobe PDF document