Thanks for the feedback! Hope I’m not getting back to you too late. I’ve confirmed the issue and am looking into it today.
I have implemented a fix that should be included in version 2.1, coming out shortly.
Basically, the Jetpack Sharing widget hooks into the_content filter, and that plugin assumes that it will only get run once. When you insert pages, the_content gets run on each inserted page, which confuses Jetpack. I implemented a quick fix that skips running the_content filter on any inserted pages if Jetpack Sharing is enabled.
Please note that this means any other the_content filters won’t get run on inserted pages. For example, any shortcodes in inserted pages won’t be parsed.
FYI v2.2 will modify the fix for Jetpack because it introduced problems for other users.
You will need to create a filter in your theme in order to disable the_content filter from being applied to inserted pages.
For example:
// If Jetpack Sharing widget is enabled, disable the_content filter for inserted pages.
function theme_init() {
if ( has_filter( 'the_content', 'sharing_display' ) ) {
add_filter( 'insert_pages_apply_the_content_filter', function ( $should_apply ) { return false; } );
}
}
add_action( 'init', 'theme_init' );