I have strange green flickering artifacts in my render. How can I get rid of them?

Hi, I am working on a sequence in Unreal 5.1 and when I render I get some strange green flickering artifacts around my trees.

You can see the sequence here: Frame.io

My setup is:
Macbook Pro
Unreal 5.1
The scene is lit with Ultra Dynamic Sky
All assets are Nanite, also the foliage (primarily trees).
I appreciate all help on this.

Regards,
Tor Martin

I was getting similar artifacts with lumen and was able to fix with the console commands:
r.Lumen.ScreenProbeGather.ScreenTraces 0
r.Lumen.Reflections.ScreenTraces 0

please be warned, though, I am a newb who just happened to find this fix on a forum and it happened to work for me, however i started having other issues after and i can not say whether or not they are related. you would be wise to create a copy of your file before trying this. hope it helps…

Thanks for your answer. I tried with your console commands, but the green artifacts did not go away.

Let me know if you have any other thoughts.

I also get some artifacts when changing the lighting: Frame.io

Does anybody know how to get rid of the green and white artifacts? Is this a Mac thing?