Motion trigger when switching to night/IR vision

Operations

Young grasshopper
Dec 26, 2019
61
18
The Netherlands
My Dahua camera triggers an alert when it switches from normal light to IR (because it is getting dark outside). I don't use day/night profiles.
Is it possible to solve this false alarm?
 
Try adjusting the values located... in Blue Iris, going to Camera Properties -> Trigger tab, -> Motion Sensor Configure button -> Advanced -> Object Detection Edit button-> Reset Detector When Object Size Exceeds...
 
Try adjusting the values located... in Blue Iris, going to Camera Properties -> Trigger tab, -> Motion Sensor Configure button -> Advanced -> Object Detection Edit button-> Reset Detector When Object Size Exceeds...

What is a good working percentage you think? Sometimes i also get a false alarm from car headlights. I picked 40% now.