I am a relatively new user, and am having many of the same problems. Mine seems to be worse, though. I share notebooks with my wife for receipts, among other things. She has been unable to add a particular tag with the same problem everyone else is having. However the tags are on the notes if you look at the notes when logged in my account. I log back into her account and the tags are not there. What is wrong? I am trying to use the workaround, but still not able to do a simple thing. It is very frustrating.