English Bible pop-up contents question

Mark Smith

Here is a pop-up from 1 John 1:9 in the NASB95:

Why is 'Strong's Greek #266' repeated on this line? I notice this seems to happen on a lot of the words in the text. Sometimes, however, there is only one 'Strong's Greek #xxx'. For example from the same verse:

 

 

Dave Hooton

The Interlinear panel shows that the word "sins" is the translation of  2 Greek words, but the first occurrence of #266 is questionable.