Blogs MU Theme failed to update

Hi Team,

When I tried to do the automatic update for the theme Blogs MU. I get the following error:

Downloading update from…

Unpacking the update…

Could not copy file. blogs-mu/_inc/js/jquery.nivo.slider.js

If you take a look at our previous posts/support questions. It seems to have a running theme. Could you possible point us to the right direction why the automatic update sometimes fails to copy files?

Kind regards