WSOD when enabling 'Amazon Simple Storage Service' as filesystem

When I go onto the filesystem configuration page and set my site to use 'Amazon Simple Storage Service' as the download method, my site instantly goes to a WSOD. To fix this, I simply added this to settings.php to revert my changes:
$conf['file_default_scheme'] = 'public';

The thing it, there are no errors relating to this in my error log, so wonder if there is a whitespace issue in the code maybe. Does anyone else have this issue with the newest version of the module? I tried this with the dev version aswell, and had the same issue.

I have enabled awssdk and that appears to be fine as far as status report goes. And amazons3 modules config gives me errors if I put in an invalid bucketname.

Not sure what else to try with getting this module to work. I have just updated my drupal core to 7.31 in case it was that as well.

Any suggestion on things to try would be greatly appreciated.