No news about direct support...maybe my mails are in spam folders ? so I post this here :
whatever ! I would like to help because this plugin is the only one who have understand real needs of user (connected to woocommerce, sell tickets, gift option...etc)
so has the calendar shortcode is not working for me even after testing few different basic install, english, french wp, with and without woocommerce, I decide to have a look in the code...mmmm....I am not a devlopper but :
looks like line 621 of event-calendar-ticketing.php there is this as line 153 in events-widgets.php :
$duration = get_post_meta( $p->ID, '_ignitewoo_event_duration', true );
but the problem to me is that _ignitewoo_event_duration has no value !
I checked in phpmyadmin and find start value and end but no "duration"
so : widget is displaying same starting date/hour and ending because at line 166 there is :
echo '<br/>' . date( $settings['date_format'] . ' ' . $settings['time_format'] , strtotime( $s ) + $duration );
with empty duration !
I don't have any idea how you calculate duration but I am almost sure that the piece of code needed here is part of the "pro version" and you may have forgot to test your plug without it...I know time is missing !
Hope it will help !