Try making the min size larger and the make time longer.
And you have AI going - is it sending you alerts even with that video?
If not, then don't worry about it too much - that is the whole point of AI is to allow the camera to trigger more but have AI knock out the false triggers.
I would uncheck the autoflag box - eventually that will fill your drive up as flagged video is not deleted by default with BI clips and archiving.