Can't get zone transparent in section with stamp show up.

[PYA]

I can't show zone to be transparent in cross section.  and also room stamp won't turn on

all layer turn on. 

renovation filter is show for existing, demo, new. 

no graphic overside combinations.

Model View Option: show with zone stamps is on.

Zone surface is Zone Assembly.

Zone Assembly transmittance is 100.

but I get cross section opaque without zone stamp. 

I read thru AC27 Manuel and find nothing else I could did wrong. 

[Laszlo Nagy]

I have created a screenshot to illustrate your tip.