Outline introducing lighting changes to my scene

I have a piece of code that using the outline conditionally as shown below.

      {highlight ? (
        <EffectComposer multisampling={8} autoClear={false}>
          <Outline
            pulseSpeed={2}
            selection={[myMesh2]}
            visibleEdgeColor="white"
            edgeStrength={100}
            width={1000}
          />
        </EffectComposer>
      ) : null}

The outline behaviour works correctly but it's introuducing weird lighting behaviours. The first image is before it triggers, the second image is while it's active and the third is disabled after being triggered at least once. Does anybody know what the cause of this is? This is the only post processing effect that's being used.

Reproduisez l’extrait conditionnel de EffectComposer et Outline, puis comparez l’éclairage avant l’activation, pendant son activation et après sa désactivation en vous servant des images jointes comme référence. Le travail est terminé lorsque la cause de la modification de l’éclairage est isolée et que l’éclairage de la scène reste cohérent lorsque l’effet est activé ou désactivé.