Christopher Finke

It looks like the Launch theme uses some different-than-expected content-*.php files, so this should mostly work:

function launch_render_infinite_scroll() {
	while ( have_posts() ) {
		the_post();

		$post_format = get_post_format();

		get_template_part( $post_format ? 'content-post-' . $post_format : 'content-post-standard' );
	}
}

add_theme_support( 'infinite-scroll', array(
	'container' => 'primary',
	'footer'    => 'footer',
	'wrapper'   => false,
	'render'    => 'launch_render_infinite_scroll',
) );

You may want to use Custom CSS to hide .page-navigation, because it’s not in its own container, so it stays visible above the newly loaded posts.

Can you make sure that you have the Carousel module enabled? If you do, can you post a link to a page where the problem is occurring?

Version 2.1.1 was released last night to address a similar issue; could you try updating to 2.1.1 and see if the problem persists?

Could you try reactivating Jetpack and then deactivating individual modules to see which one is causing the error? Likely candidates are Shortcode Embeds and Photon.

Also, if possible, could you post a screenshot of the shrunken videos?

2.1.1 was released a few minutes ago to address this issue. Sorry for the inconvenience.

Give this minor update a shot: http://downloads.wordpress.org/plugin/jetpack.2.1.1a1.zip

There is a bug in 2.1 that only affects sites that are upgrading from 1.9.2 or earlier. The version linked above is the same as 2.1, except it has a fix for that bug.

dorde: If you can temporarily remove the Custom CSS and revert to the standard contact form shortcode, I’ll take a look.

(Marking as resolved.)