Wrapper material leaves thin overlay

[kostenurka]

Hi,

it's been ages I'm dealing with wrapper from time to time... Although sometimes works but I never remember the right procedure for solving my issue now. Can you say the reason why wrapper material applied to plane remains slightly noticeable ?
Should it be production render used with CPU only? You can see on screenshot the settings. Thanks for helping

[kostenurka]

solved...
i forgot a layer Background ON inside VFB
works like chamr