Twinmotion Lumen render issue

I have this issue on Twinmotion Lumen render … I can fix it … I change setup,
material, reflections e etc… this stripes apears everywere (at the HDRI sun light) and i can fix it … Please help me !

In general, HDRI and lumen don’t really work together unfortunately, at least not without a skylight passing the HDRI information to lumen. These sorts of artifacts are relatively common if you’re using a native HDRI with GI.

Hi, Thanx … But …

This is happening in Lumen, with and without HDRI, in realtime mode, with and without HDRI. When I change the position of the light, the stripes change with it. The stripes only do not appear in the shadows… In Path Tracer mode this does not occur.

Hmm, what does the surface cache coverage look like?

Where can I find this on twinmotion?

I Fix it … I change the Shadow bias … it was 0.10 … I put back to 0.30 … The stripes are gone. Thanx for your atention !!

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