"Did you test the camera in the location? "
Yes - both IR aim and the IR test. The camera usually detects ME. It rarely detects my cat, which I have walk the path to test the sensitivity. The camera faces the trail directly on. The trail starts at the foot of the tree to which the camera is attached, and goes straight away for about 100 feet.
If an animal walks directly across the Moultrie, which I've tried, the trigger time is often too slow to capture the animal. I got several rear end photos as the animal left the frame.