I had a live chat with support, who eventually got back to me to say that they thought it was a known bug/issue with the outlook clipper. I'll get back to you with info if I get any more.
i'd like to follow up on this also. Web clipper sgugests tags for both business and personal, but outlook is only suggesting personal tags. It's very annoying, as inevitably it makes tagging less consistent. If this is supposed to be aimed at serious business users, then outlook integration is essential, otherwise we might as well just use shared personal notebooks.