unwanted retinatures on prospectus

[wer543]

Hello everyone, I ask you an opinion on a problem that appeals to me:
I attach an image of two elevations, south and north, with walls of the same type. I can't make it disappear.
retinating to the right prospectus, what can it depend on?
Thank you.

 

[MB78]

the first ones that come to mind are, accidental substitution of visibility/graphics or use of the command paints surface. verify that the two walls actually have the same material on the outer layer and maybe not have traced the walls of the prospectus by inverting int. and ext

 

[wer543]

solved. it was a pattern seen that was not applied. Thank you.