Thanks for the log file.
The issue is known - the download appears to be stuck at 100% on Netflix (this, however, still may happen at the Amazon side too). A temporary workaround should be clicking the "Abort" button. This would finalize the process.
The issue itself has been fixed for the next release.
I have seen this occur to me today whilst using a VPN to Amazon UK. It only occurs occasionally. After about 30-45 seconds, it appears the hand-shaking gets it right and it finishes properly. Not a big deal to me. Just to let you know. Otherwise, this program is awesome!