I downloaded 2019.40.50.7 a few days ago, turned on visualization, but it wasn't working. I picked up my X LR FSD in September, 2019. Teslafi reported that I have HW 2.5, which I didn't think was right. Found a youtube video about checking your HW version. Using VLC Media Player and your USB drive for recording video, you check to see which CODEC you have. according to the video, I had HW 2.5. That information is incorrect. I do have HW 3.0, confirmed by Tesla Service.
Scheduled a visit from Mobil Service, and within 1/2 hour, I had a phone call from tech support. They had me verify that visualization was on (it wasn't). Turned it on, and then they had me change from my profile to Easy Entry. Checked visualization, and it was turned off. Turned it on in the Easy Entry profile, and now it works. Previously, I was seeing traffic cones, but no traffic signals or stop signs. On the display, the signals are really tiny, but if you look carefully, you can see the lights are either red or green. Didn't notice if they ever show yellow. Very nice!
If they would just fix the Voice Commands, I'd be really happy.