So let me see if i get this correct. What you want is to do something when an event which has Vakantie - in the title, either starts or stops. Correct?
If so, there’s a much easier and better way to do this:
When you are using the AND card you show above, you are not checking the calendar data the trigger card has provided. Instead you are checking if ANY event that contains Vakantie - in the title will start within 1 minute. There’s no need to make IcalCalendar check every loaded events if there is one that matches your settings.
When you use the flow i show above, you are only checking if the current event (which is triggering at the moment) contains Vakantie - in the title. 
The reason why your flow which checks when the event is ending doesn’t work, has the same problem as the flow which checks the start. Plus when the event which contains Vakantie - in the title actually fires your trigger (which it does 
) your AND card hammers it down. Because you are checking if there is ANY event that contains Vakantie - in the title which will end within 1 minute. And there isn’t. Because you are in the triggered flow where the event has already fired….
