I just got a new iPhone that is only connected to my home wifi connection, and I've downloaded Dropbox and I'm trying to save a short video to my phone from my DropBox folder to share on Instagram, as I've done routinely in the past with my old iPhone. For some reason, it keeps saying "Export Failed" and was first saying to check the wifi connection (my wifi connection is fine), and now it's just saying "Dropbox was unable to download the file".
What's happening??