Lexi Thompson, ANA 3rd round, seventh hole, after a long putt lips out, at 59 minutes on the video.
Certainly looks like she marked forward. This is 10 holes before the marking that resulted in the ruling.
https://www.youtube.com/watch?v=FimtXYKPqtI
Is there a different angle? Very hard to tell from the one at minute 59. She does seem to reset how the ball is facing.
Carl, I think that's the only view. It was pretty obvious the ball's a bit forward, maybe a tenth of an inch, and to her left, and I'm watching on a 8-inch window on my laptop. I guess she's just got to make those 50-footers.