https://community.graphisoft.com/t5/Modeling/Archicad-16-problem-SEO-not-working/m-p/146546#M78680 After a bit of fiddlying about trying various combos it would seem its because the fill for the complex profile included some curves. Once I removed the curves the SEO worked.<BR /> <BR /> A tad annoying the manual doesn't say don't use curves and or the SEO doesn't let you <IMG src="https://community.graphisoft.com/legacyfs/online/emojis/icon_sad.gif" style="display : inline;" /><BR /> <BR /> As you were it isn't the curves in fat it is the wall priority. The multi storey wall had a priority of 4 and the complex profile wall had a priority of 2. Made them both the same now all is well Wed, 15 May 2013 20:59:15 GMT fuzzytnth3 2013-05-15T20:59:15Z https://community.graphisoft.com/t5/Modeling/Archicad-16-problem-SEO-not-working/m-p/146545#M78679 <DIV class="actalk-migrated-content"><T>I have two walls, one wall is a multi-storey wall and the other is a complex profile. When I do a solid element operation with the complex profile being subtracted with upwards extrusion from the multi-storey wall, nothing happens . <BR /> <BR /> Any ideas or has anyone else hit this problem?</T></DIV> Wed, 24 May 2023 10:47:33 GMT https://community.graphisoft.com/t5/Modeling/Archicad-16-problem-SEO-not-working/m-p/146545#M78679 fuzzytnth3 2023-05-24T10:47:33Z https://community.graphisoft.com/t5/Modeling/Archicad-16-problem-SEO-not-working/m-p/146546#M78680 After a bit of fiddlying about trying various combos it would seem its because the fill for the complex profile included some curves. Once I removed the curves the SEO worked.<BR /> <BR /> A tad annoying the manual doesn't say don't use curves and or the SEO doesn't let you <IMG src="https://community.graphisoft.com/legacyfs/online/emojis/icon_sad.gif" style="display : inline;" /><BR /> <BR /> As you were it isn't the curves in fat it is the wall priority. The multi storey wall had a priority of 4 and the complex profile wall had a priority of 2. Made them both the same now all is well Wed, 15 May 2013 20:59:15 GMT https://community.graphisoft.com/t5/Modeling/Archicad-16-problem-SEO-not-working/m-p/146546#M78680 fuzzytnth3 2013-05-15T20:59:15Z