I’m having a similar problem.
I’m trying to authorise the plugin with Twitter. I enter my username and password when requested, and then get redirected back to the WordPress Social settings page. But it still says “No accounts”. I can see from logging into my Twitter account that the authorisation has succeeded, but the plugin doesn’t reflect this, so I can’t use it
I’ve used the plugin successfully on several other sites. I can’t see what the problem is here.
I’m using the latest version of Social (downloaded this morning) and WordPress 4.0