Im having trouble with the seo between the mesh and a library object...the thing is i have 3 differently profiled meshes and a polystyrene board of which i wish to trim into a desired profile...suprisingly only 2 of the 3 meshes perform the operation (substruction with an upward operation) susseccfully...the settings are all the same for the the three meshes...anyone to help where i wrong please!!!!
archicad 19..
