Please post up a clip as well as a picture of where/how the camera in mounted. What happens if you set IR Intensity to low? Every location is radically different, due to a whole bunch of variables, camera placement, ambient lighting position, reflective light, etc.
Don position the camera so it’s point along siding, it will cause IR illumination to reflect off the siding. If you have to install that way, make sure you set the intensity to low. Don’t have the camera sitting directly on a table, deck or so on. Motion sensing lights can cause major shifts in lighting so you might need to find a new location for the camera.
Generally the issue is IR lighting being reflective or other light sources making it difficult for the camera to adjust.