Can't change homepage setting on imported sites

I imported two standalone wordpress sites into my WPMU network (to use as templates) by following the instructions in your blog post to the T.

They are sites ID 4 and 5:

The sites were mostly imported, but with several issues:

– homepage is a blog page instead of static page… and it’s impossible to change that settings (just refreshes the page ).

Possible clues:

wp_sx_blogmeta table is totally empty

wp_sx_blog_versions is empty except blog #1

Your help is much appreciated!