Hey again everyone,
We’ve been monitoring both our ticket queues and this thread for the past few days, and all reports are of people who already had broken files. At this point I’m going to close the thread out with the supported resolution. The bug that originally caused this is fixed now. To get back in, you must finish your current download, but it should not break again as long as your battle.net application is up to date.
While we agree that this is not the best experience, especially in light of the current content distribution issues discussed here, this is the only method we support to regain the files. If you have problems downloading the files, you should try downloading them later at night/overnight.
Sorry again that this got in the way of you all playing your game, thanks for working with us throughout this process, and if you end up having any other technical issues with the launcher, please let us know.