"br63":145llhp3" said:in my project, it gives an error that although the thickness is the same on all floors in the geometric control in my project, the thickness of the curtain is not the same, it is thicker. In systems consisting of a combination of curtains of different thicknesses, you may ignore this warning if it is given if thick curtains continue to the upper floor. This is among our notes. If you are talking about a different situation, can you add a sample project? Good work