Stupid putting issue

I was playing a round and when I went to putt it would recognize the ball just fine but when I hit the putt it would stop recognizing the ball and no putt was recorded. Tried playing with the Square position, etc but no luck and was driving me crazy. Finally figured it out - I use an alignment stick on my full shots and the stick has a section that is white. The Square was picking up the white on the alignment stick and losing track of the ball. Hopefully this will help somebody else.