I'm using a Dropbox Paper document that was shared with me by someone else. Several weeks ago, I opened up this document and was able to edit it no problem.
But today, I'm getting the error messsage "You are not logged in and changes cannot be saved."
This is not true, however. I am logged in. I double-checked I was logged in with the right email address (I was). I reset my password and logged back in.
Same error message comes up. This is rather bothersome as I can't use the document at all!
Any guesses as to what could be causing this?