Light reflection flicker in glass and chrome materials

[krisp]

Hi all,

I have a scene of an interior with just with camera movement/pan, all lights stay the same. When I render the animation, I get a light flicker in the reflection. What is causing it? I am using "load UHD Cache from file" option and "Animation (flicker-free)" preset, all other settings are a default.
In the gif attached you can see an example of the flicker.

Thanks for suggestions

[krisp]

Okay, to answer my own question looks like "Highlight clamping" fixed it.

[maru]

Yes, that is caused by picking up random reflections.
Check out this post for some tips on optimizing this:
https://forum.corona-renderer.com/index.php?topic=19628.msg122645#msg122645