Good to know that.

Thank you for marking as resolved.

Hi Serge,
Thank you.
Is it happening in activity or clicking on gallery thumbnail in the widgets/directory?

Thank you for the feedback.

Will certainly add tutorials to show compatibility with the new plugin in future. Currently my hands are full, so please use the above approach for now(and you may ping me in 15 days for the new plugin).

Thank you
Brajesh

Hi,
Thank you for the clarification. The code for loading newest activity is part of bussypress.js(that comes with your theme or loaded via the theme compatibility).

Here is the code section in that js file that does it.

	/** Activity HeartBeat ************************************************/

	// Set the interval and the namespace event
	if ( typeof wp !== 'undefined' && typeof wp.heartbeat !== 'undefined' && typeof BP_DTheme.pulse !== 'undefined' ) {

		wp.heartbeat.interval( Number( BP_DTheme.pulse ) );

		jq.fn.extend({
			'heartbeat-send': function() {
				return this.bind( 'heartbeat-send.buddypress' );
			}
		});
	}

	// Set the last id to request after
	var first_item_recorded = 0;
	jq( document ).on( 'heartbeat-send.buddypress', function( e, data ) {

		first_item_recorded = 0;

		// First row is default latest activity id
		if ( jq( '#buddypress ul.activity-list li' ).first().prop( 'id' ) ) {
			// getting the timestamp
			timestamp = jq( '#buddypress ul.activity-list li' ).first().prop( 'class' ).match( /date-recorded-([0-9]+)/ );

			if ( timestamp ) {
				first_item_recorded = timestamp[1];
			}
		}

		if ( 0 === activity_last_recorded || Number( first_item_recorded ) > activity_last_recorded ) {
			activity_last_recorded = Number( first_item_recorded );
		}

		data.bp_activity_last_recorded = activity_last_recorded;

		last_recorded_search = bp_get_querystring('s');

		if ( last_recorded_search ) {
			data.bp_activity_last_recorded_search_terms = last_recorded_search;
		}
	});

	// Increment newest_activities and activity_last_recorded if data has been returned
	jq( document ).on( 'heartbeat-tick', function( e, data ) {

		// Only proceed if we have newest activities
		if ( ! data.bp_activity_newest_activities ) {
			return;
		}

		newest_activities = data.bp_activity_newest_activities.activities + newest_activities;
		activity_last_recorded  = Number( data.bp_activity_newest_activities.last_recorded );

		if ( jq( '#buddypress ul.activity-list li' ).first().hasClass( 'load-newest' ) ) {
			return;
		}

		jq( '#buddypress ul.activity-list' ).prepend( '<li class="load-newest"><a href="#newest">' + BP_DTheme.newest + '</a></li>' );
	});
});

Most probably the buddypress.js file is not getting loaded on your page where you have used the shortcode. Please check for that.

Hi Mike,
I am sorry for the confusion. Please see here
https://buddydev.com/mediapress/topics/getting-started/mediapress-wall-gallery/