All the projects I'm currently working on have disappeared from my stats. Only detached projects are shown. I've tried renewing the CPID but that's not had any effect.

Doing a search, I get three users with the name "Richard Kimber". That would indicate you likely have a split CPID; please read the FAQ's and the many forum topics relevant to that situation. This is generally caused when you change account information (such as email address) on some projects and not others. Since you can't change account information at a retired project, you can merge your old stats into your current account--but only if you were a member of BAM when the project was marked as retired.