Repost action on Outline

The outline goes gray, there is a loading sign that looks like something is going to happen, but ultimately nothing happens.  Can you repost from outline to outline again? If not, why is the repost button there? Just a bug? Any help? Thanks!

Repost in outline means that after reposting the post will appear in your profile's timeline. Once you reposted, the button became grey and you can't repost the same post again.