My 5.4GB Realm always stalls after reaching 4GB download

I have a Realm that is 5.4GB in size. I am trying to download a backup copy of my realm. It seams that the download process stalls after reaching 4GB. Same problem occurs when I try to download a procedural backup. I have tried multiple times to download my Realm with both methods and I get the same result! See photos attached. I would really like to be able to download a backup copy of my realm right now!

Other Information
I am using Minecraft Windows 10 Edition

I have 70GB of free space on my computer. (So this is not a matter of free space)

I can confirm that downloading Realms under 4GB in size will work no problem.