We were experiencing a problem with Stars bunching up in a cluster when there were multiple entries with the same URL on one page in blogs that have installed Hatena Star. This problem has now been corrected.
This problem was caused by the entry matching process in HatenaStar.js because we had not taken into account the possibility of having multiple entries with the same URL on one page. As a result, Stars were doubled up and displayed in a cluster at the link. With this update, we have modified the process within HatenaStar.js, making the Stars appear correctly within their own links.
We would like to thank all the Users who pointed out this problem.