I have found the reason.
My first material was an empty material which turned on the frame of my windows.
I have deleted this first material and shift my wall reference about the same thickness.
Christophe - FRANCE Archicad Designer and Teacher Archicad 15 to 28 FRA FULL
OS 13 Ventura - MacBook Pro M2 max- 32Go RAM "Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin