Started my download, went to work, got home and it says there was a problem installing the app and to try again...w*f....? Says something about needing repaired and to try again.
FIX: Just kept downloading it lol
If it gets stuck in a downloading/reinstall loop, I wrote how to fix that issue here
https://www.seaofthieves.com/forum/topic/26840/error-0x803f8001-beta-win10-download-workaround/5