Volume data full
I am trying to download a 5 gig video, saved from my computer and iCloud to files. When I try and download on my phone it says volume data is out of space. I have 27 gigs free on iPhone storage and 25 gigs free on iCloud. How do I download the video then when I have free space on phone and on iCloud. What is volume data then?
iPhone 11 Pro, iOS 13