Hello malcolmj,
I'm sorry to hear you're having this trouble with false detections at night. If you could send
[email protected] an example image or video of this false detection we'd be happy to see if there are any recommendations we can give to improve the accuracy.
5 hours is extremely long for a single event. You could select a different filter or rule in the search view which does not recognize this 5 hour event, then select the time you wish to export, right-click, and select Export clip. This should create a 2 minute clip around the frame you're viewing.
Regards,
-Devin