I have lots of experience migrating using this add-on but this one failed.
I attempted to migrate between two GoDaddy shared accounts with different domain names. I correctly used the key generated on the new site to migrate the existing site. During the backup phase, the migration stalled. I waited five hours for resumption. I tried a few times and finally gave up. In fact, I received a security message pop up both sites. I then logged out, in and tried to use the key again. That didn’t work so I deleted and tried a new key. The new site won’t respond to the “Send” button after inserting the new key using the “Add Site” button. There’s no error message, it just sits there.
Could I download the small files (under 80MB cumulatively) and upload to the updraft folder on the new/empty site?