Some bookmark folders don’t show up when I try to bookmark a site and place the bookmark in a folder that I have already created. When I click, “bookmark this site” and try to navigate to the folder where I want the bookmark (using the 2 folder drop downs on the “Name, Folder, Tags box) some folders that I have created and which appear in "Library" do not show up. These are important folders. How can I get those folders to appear? How do I fix this?