Reflections in object material broken

hey everyone,

my reflections in the object are weird and broken up

i tried all the settings i know : in hdri, in lumen , rt or model… but no improvement

could it be something with the normals?

help please !

rtx4090

unreal 5.2


Try enabling this, In the Project Settings under Engine > Rendering > Optimizations change the GBuffer Format to High Precision Normals .

and enable Use High Precision Tangent Basis on the static mesh

thanks ZacD
the gbuffer i had already set to high, but the High Precision Tangent helped a lot… but it’s still not gone completely
have a look