I just tried it and the same thing happened to me. What it looks like is the old material on the wall is not updating. If I created a NEW wall with the profile it came out fine. But instead of creating all your walls over again you can simply select all the walls you need to change - go into the complex profile - edit the specific profile you need to change, mine had it updated with the new material even though it didnt show it - and choose Apply to Selection, bottom left of the menu. Hope this helps.