Yup, that's what I am saying. The funny thing is I have an earlier rendering I did in the project that worked fine. It has just stopped working recently - so I thought I changed some setting without realizing it.
Procedure is pretty straight forward. Go to a saved 3D view with transparency turned off. Go to the render settings. I have a predefined sketch render style that I use so select that (I also tried a number of the predefined sketch ones as well with the same result), and set it rendering. A few seconds later, I have a render by the windows are all transparent in the render. They are still opaque in the 3D window view. They do render opaque if I use the CineRender engine rather than the Sketch render engine.
I will have to try in a different project to see if it is just this one, or if it is all of them. But that is probably tomorrow's activity.
Erich
AC 19 6006 & AC 20
Mac OS 10.11.5
15" Retina MacBook Pro 2.6
27" iMac Retina 5K