Repeated uploading is a common issue with large file uploads to Amazon Drive. I think I see the file you are talking about and Amazon Drive issued a 504 (Gateway timeout) exception on it after uploading. This indicates that Amazon had some issue when processing the file on their side and then returned an error to us that the upload had failed because of it. I typically see either a 504 or a 408 error from Amazon Drive on these large uploads.
Here is another post from a thread where the same thing is seen:
https://forum.odrive.com/t/amazon-drive-sync-to-98-repeat/1798/4
We are going to try to combat this as much as possible in future revs, but there are limits to what we can do when Amazon is the one producing the errors. I think if Amazon Drive was to release an upload resume API, that would also help tremendously.