Zotero in google docs 'greyed out' in collaborative document?
I have a collaborative paper in which I originally had zotero connector working for adding citations, etc. The doc is owned by my and has been worked on by my colleagues. It is now my turn to edit, but the zotero citation button is not working. It is there, but it is grey. The Zotero connector works fine if I open a new document. Does anyone know why this is happening and how I can get the button to start working again? Does this have to do with some automatic version control between collaborators?