Thunderbird updated last night and now I can not read any of my emails and the subfolders where emails were automatically filed are no longer recognized. At first I thought it was just the subfolder emails that could not be read, but none of the emails can be read. I can see them in the list and can see that they are unread, but selecting an email does not show the text of the email. I also cannot drag and drop an email to the folder where it should have been filtered to.