Ray tracing breaks the viewport


I’m working with ray tracing but it is very unstable. At some point, I don’t know why, the viewport begins to flicker and the render is completely broken. I have a RTX 2080 super with the latest drivers.
Can anyone help me, please? What’s happening?

No one? :S

Can you do a quick video of it? In the video, open the post process volume and expand the RT lighting settings. I had a similar issue lately where I had enabled ray tracing and after a while my screen started blinking suddenly. I’ve seen a number of posts about ray-tracing and flickering in the viewport too. I notice the FPS is at 15-16 in the screenshot. With a 2080 Super, I would expect that to never occur. I get consistent 20-30 FPS using a 5-year-old laptop, Intel Core i7 5500U (2.4 GHz w/ integrated graphics) and 6 GB DDR3 RAM, and not a fullHD screen. My hypothesis is it’s likely a setting for RT, or a setting for the viewport / other project settings that are somehow generating the flicker and FPS slowdown.