Fixed double entry on ping.sg

This happen after i change my feed address, i updated my feed address on my exsiting profile on ping.sg but some how it create double entry each time i write a new post.

How i fix this is i change my XML-RPC Ping URI to something new, you are allow to customize your own URI on your profile page, i change it to something different and update it on my wordpress pinging site and after that there are no more double entry !

if you have similar problem , maybe you can give this a try ? Fail , after this post publish , my previous 2 entry which is without duplicate become duplicate too , guess i m wrong on this, maybe i should remove the blog and re add it ?