I have seven folders in Dropbox with multiple files in each. I have shared links for viewing on each of the top level folders. Over the last 24 hours, the links to five folders no longer work in that they open in a browser window but the page remains white and no files appear. Two of the seven folders are unaffected. All of the folders have been in place from two months to five years and have never done this before. I would rather not create completely new folders if possible as the distribution list for the links is extensive.