Hi there
Your thread seems as if you are using Conditional tagging to
ensure topics appear. While it's possible to accomplish, it's a bit
on the tricksy side. You will likely have much better luck if you
use tagging to *EXCLUDE* topics.
Keep in mind that any topic with no tag associated is
automatically included by default.
For example, lets say you have two topics. One aimed at a US
target and one aimed at a UK target. You would use two tags.
Perhaps naming one UK and the other US. You then apply the US tag
to any topic with a US target and the UK tag to any topic with a UK
target. Then you choose to exclude one or the other. So if your
output is intended for a UK audience, the build expression is NOT
US. Likewise, for a US audience, the build expression is NOT UK.
Cheers... Rick