Related items not showing in admin

Hi,

I’ve used P2P in a lot of projects, really great tool.

But this time I have an issue I can’t resolve :
I’ve create a connection between two custom post types : stakeholders and tribe_events (event post from the plugin theeventscalendar)

function vvs_connection_types() {
     p2p_register_connection_type( array(
         'name' => 'stakeholders_to_tribe_events',
         'from' => 'stakeholder',
         'to' => 'tribe_events'
     ) );
 }
 add_action( 'p2p_init', 'vvs_connection_types' );

In the stakeholder admin page, everything is fine. However in the Events page, I have the P2P metabox but NO CONNECTION DISPLAYED.

Please note that the connections exist, they are just not displayed…

Thanks for your help !

https://wordpress.org/plugins/posts-to-posts/