Composites section

[Anonymous]

Hello,
I'm working with composite slab and wall and I have an issue. As you can see in attachment I want line that I circled not to show on section. I set building material of concrete in slab higher value than the material of wall and I get this line showing up. Am i doing something wrong?
Thanks

[James B · Accepted solution]

If you hover of the warning triangle in the Building Material dialogue next to the surface pop up, you’ll find that you’re using legacy intersection methods. Possibly because the project was made in pre AC17.

Open Project Preference, and go to Legacy. Uncheck the relevant checkbox.

[Anonymous]

It works. Thank you