Calendar doesn't display all the events

Hi,
I have a problem with The Events Calendar which is not displaying all the events it should. I mean when you go to http://qwag.org.uk/calendar there should be 2 more events in July. When you click the link Next Events, those 2 events should be here but there are none. Then if you click from this page Previous Events you go back and then those 2 missing events in July are displayed.
So from the link http://qwag.org.uk/calendar/list/?tribe_paged=1&tribe_event_display=list&tribe-bar-date=2016-06 it works ok, but from link http://qwag.org.uk/calendar/ it cuts the last 2 events. How to fix that?

https://wordpress.org/plugins/the-events-calendar/