I played in the Battlezone in the prior build, and didn't have this issue, but moving my camera angle around was making my character and/or the platforms that make up the ground for the battlezone disappear on screen.
I have had severe lag issues on Tribble in general... I am assuming the server simply does not have the level of infrastructure that Holodeck has, and strain has been particularly large since the Silver member access update.
Yeah I have the exact same problem. I was being attacked by something I couldn't see and I had to turn around to see it. However moving just sligtly to one side would make it disappear again.
Also, I'm running an Alienware Aurora and when I log onto Tribble all of my lights go out (both keyboard and tower). This was not a problem before. Since it was 1am when I first tried S8 when the lights went out it was very dark in my office