Different event participant count on event summary and partipant list

[pminf]

We have a problem with one of our civievents: participant count in event summary (http://d45.demo.civicrm.org/civicrm/event?reset=1) and the Find Participant result count are not equal. In the overview a count of 210 is displayed. When I click on this number I get a partipant list, which only contains 206 results. What's wrong here? I tried to clear cache and executed all relevant jobs but with no success.