I do not, no. But it was very likely a community map. I suspect this is a one-time error anyway that's not reproducible that easily though

do remember what test chamber that was in?

@PyxlX there are some vignette-like overlays on all the screens in the elevator room and what happened here is that one was drawn on top of geometry that is actually closer to the camera (the yellow panels) when it should not have been. why exactly? no idea (possible depth test failure? I know drawing translucent stuff in 3d scenes can be a bit finicky)

what is that?

i've seen this too it's weird

RIGHT!?

WAT