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As described in this thread, the new version of dropbox backup is great but has a major downside: files stored via backups can no longer be accessed within the dropbox app! Quoting @mbriney from ...
so I signed up for Dropbox just to be able to access the backups anytime.. but it's obvious that I cannot do it via the app, and only via the browser.. Nope, canceling the free trial and not going to move fwd with Dropbox