I've noticed a small compatibility issue with the plugin Formidable Pro. I'm not sure what version of either plugin that it started happening on but I am running the most recent version of both.
What happens is when Connections is installed and you attempt to update the 'Screen Options per page limits' in Formidable Forms, Entries, Templates, or Custom Display pages the limit get set to '1' and you're unable to update the limit further (it stays 'stuck' on 1).
I spent a little bit of time trying to identify the cause but I don't have a solution at this point.
I'm not sure if this is an issue with Connections or Formidable so I'm letting both of you know :)