Ditaval not filtering topics from a map - FM 2020

Greetings,

I have a small map of shared content that has filtering both at the topic level in the map and inside the topics. I am producing PDF output.

Read This First

   - License Agreement (x, y)

   - Product Disclaimer

   - Conventions

   - Warnings and Cautions (x,y,z)

        - Electrical and Heat Safety (x, y)

        - Hygiene (x,z)

...

And so on.

No matter which ditaval I use, the license agreement appears. If my ditaval says:

<val>

   <prop att="props" value="x" action="exclude"/>

   <prop att="props" value="y" action="exclude"/>

   <prop att="props" value="z" action="include"/>

</val>

I would expect the document would not have a license agreement. It shouldn't have a license agreement, that's what I'm trying for.

The filtering seems to work fine inside the topics. And, other, later topics are not included.

Why can I not hide this topic from my output? Everything I produce has the license agreement included.

I'm sure this is a simple operator error as I am not yet fully versant in FrameMaker though I'm comfortable with DITA.

Edit: I've tested the map and ditaval using Oxygen and I get the correct output.

Any assistance is appreciated,

Wanda