More and more youtube videos will not download - 0 bytes Rated 5 out of 5 stars

Version 4.9.17http://youtu.be/2IF5TfnmV0kThis one is not even a VEVO video and it's cannot be downloaded. 0byte file.UPDATE: with mig's response I tried this... yes it worked!Thanks mig

Updating rating back to 5 stars!

This review is for a previous version of the add-on (4.9.17). 

With the latest modifications as per http://bugzilla.downloadhelper.net:8080/show_bug.cgi?id=536 this video downloads ok for me (using 720p format)