This happened to me as well today for the very first time EVER . I was in a match play game and my partner said he froze after hitting his putt. so we both make it back to the same green and now im putting out of turn ( he is still away) . well my putt then froze during swing . we just decided to quit the match.
I then started another match and this time my partner froze with his club in the backswing on the first tee. again reset and this time im in the teebox and I froze as well in the backswing. I repeat I have NEVER had any issues like this before ( maybe im lucky) . Looks like WGT has some major issues on there hands today......
Hope the technicians get this all sorted out soon....