DropBox will not upload numerous files. I have tried using Firefox, Google Chrome, MS Edge, I have cleared cache, I have tried to upload in Incognito mode. Still, numerous files will not upload. The error messages vary - some have said "file is empty" when it is just a standard .pdf, sometimes the message states that the file type is unsupported by DropBox when, again, they are basic .pdf documents with .pdf file name extensions. Also, DropBox is changing some of my file names. I deleted my DuckDuckGo search extension. I also tried uploading with WebRoot web protection turned off. None of these potential fixes have worked. I have seen other posts about this issue. Perhaps something has happened with DropBox? I have uploaded docs like this just fine for the past year and a half. This problem just became apparent this week with a large upload I needed to do. Oh, and I have plenty of space on my DB account and the files are not too large - nor is the entire attempted upload too large.