Bug? Unfavourited projects unable to be refavourited

I unstarred a project due to deadline restraints, only to find out a little later that the project manager pushed the deadline back. However when I tried to refavourite it, the project does not reappear in the dashboard's 'favourited projects' (even while starred on the open project list). Individual roles starred within the project show up, but not it as a whole. Is this some bug?