Putting on hole #6 at oak. a line appeared from putter to hole on both my putt attempts
hole #6 oak @ about 2:15 am U.S central time
The first one contains a red line ( i would think for a downhill putt and the 2nd is a black line for somewhat even lie)
There was 2 other players in this 18hole practice and neither of the other 2 experienced it and it only happened these 2 times through out the game.
