The latest release of WPMUDEV SMARTCRAWL PRO will not allow you to create a new site when using WPMUDEV NEW BLOG TEMPLATES, you will get the following error:
call_user_func_array() expects parameter 1 to be a valid callback, function 'wds_blog_template_settings' not found or invalid function name in wp-includes/class-wp-hook.php on line 286
Which ultimately will cause an insert error in the database..
The problem is found in /wp-content/plugins/wpmu-dev-seo/includes/core/core.php line 350.
change the line:
add_filter( 'blog_template_exclude_settings', 'wds_blog_template_settings' );
add_filter( 'blog_template_exclude_settings', 'smartcrawl_blog_template_settings' );
It looks like the developer just forgot to update the add_filter function to use the correct function name, smartcrawl_blog_template_settings.
Hope this helps!
P.S. I am not sure where to report bugs, so hopefully this was submitted in the right spot. If not let me know so that I can correctly post any bugs found in the future.