Using Batch Mesher from Parts Browser

I'm trying to use the Parts Browser to batch mesh a new Part Assembly representation similar to the example I saw in KB0116870: "HyperWorks Demo: Parts Browser Batch Meshing on a Large Model"

I have geometry pre-processed and saved as a representation named "P25 Shell" in the "common deck frame" Part Assembly. I would like to batch mesh this Part assembly in the background, so the next step I took was: right click on Part Assembly > Representations > Create as seen below:

When the "Change Representation" window appears, I select the "P25 Shell" Representation:

This is the error I receive, and no further inputs are possible beyond this point:

Here's the "P25 Shell" representation control for reference. Note that I generated and modified the specified .param file with limited batch meshing experience. I've attached the .param file as a .txt if it needs to be referenced:

Does anybody know what I'm doing wrong? Thanks,

Mandy