WordPress: Error when trying to upload a theme

[acamarata]

After uploading a theme I get the page "Are you sure you want to do this?" but with nothing to click.

When navigating back to the Add Theme page to try again I get a blank page that says "No such grain for public ID: ... [404]" only on the page where you would upload a theme.

If I restart the grain and go back then I can attempt to upload again but with same result. I tried a new grain and got the same behavior.

[dwrensha]

Hi. I've opened this issue on the wordpress-sandstorm repo:
dwrensha/wordpress-sandstorm#9