Here it doesn’t go in a loop (maybe you have an oldere eme version?), but if you use 2019-01-01-… it currently falls in a calendar-like page because of a permalink setting.
Try changing line 215 in events-manager.php from
$newrules['(.*/)?'.$events_prefix.'(\d{4})-(\d{2})-(\d{2}).*'] = 'index.php?page_id='.$events_page_id.'&calendar_day=$matches[2]-$matches[3]-$matches[4]';
to
$newrules['(.*/)?'.$events_prefix.'(\d{4})-(\d{2})-(\d{2})/?$'] = 'index.php?page_id='.$events_page_id.'&calendar_day=$matches[2]-$matches[3]-$matches[4]';
(changing ‘.*’ into ‘/?$’ in the regex). That should solve it