I'm trying to download a folder from Dropbox. When I click download, all I get is a file called
unspecified. Any idea why this happens?
This happens when you have "too many" files in that folder.
From the Dropbox Help Center:
Can I download entire folders on the Dropbox website?
Note: It's not possible to use the website to download an entire folder that's over 1 GB or that has over 10,000 files. If the folder is in your account, use the Dropbox desktop application to download the entire folder to your computer automatically.
A workaround that I've found is to simply download the directory in chunks, by selecting (click and shift+click) a block of files that is below this limit.