I just tried and it's still not working for me. Here's what I did: I went to the lesson "My Father's Back" and clicked on the word 举箸提笔 from the text, the popup window came up and was floating on the screen. I then went to the vocab tab in that lesson and clicked on the "Add to Vocab" button. I then went to see where that word was placed and could not find it in the lesson vocab or in the drop down vocab list for that lesson. I also noticed that when I go back to that particular lesson, the word is still floating on the screen and I cant seem to get it to disappear.