https://community.graphisoft.com/t5/Modeling/wall-intersection-erro/m-p/283468#M146497 Do your 3 Walls join in a single point?<BR /> It seems to me that the 2 Walls that are the continuation of each other are joining in a certain point and then the third Wall joins into just one of them, not both, at another point, which may cause this result.<BR /> So try to make their Reference Lines join in a single point. Mon, 06 Jan 2020 16:06:54 GMT Laszlo Nagy 2020-01-06T16:06:54Z https://community.graphisoft.com/t5/Modeling/wall-intersection-erro/m-p/283467#M146496 <DIV class="actalk-migrated-content"><T>Hi <BR /> <BR /> I cheked Ref. line, material priority, layer intersection group and attach order<BR /> but at the of the insulation, they are work properly <BR /> can you give me a advise?<BR /> I attached the images plz check</T></DIV> Tue, 09 May 2023 14:18:11 GMT https://community.graphisoft.com/t5/Modeling/wall-intersection-erro/m-p/283467#M146496 Anonymous 2023-05-09T14:18:11Z https://community.graphisoft.com/t5/Modeling/wall-intersection-erro/m-p/283468#M146497 Do your 3 Walls join in a single point?<BR /> It seems to me that the 2 Walls that are the continuation of each other are joining in a certain point and then the third Wall joins into just one of them, not both, at another point, which may cause this result.<BR /> So try to make their Reference Lines join in a single point. Mon, 06 Jan 2020 16:06:54 GMT https://community.graphisoft.com/t5/Modeling/wall-intersection-erro/m-p/283468#M146497 Laszlo Nagy 2020-01-06T16:06:54Z