Hi Dan,
Sorry, this is my first time using the forum and I'm not familiar with the process.
I have suppression issue when I enabled "Containing Empty Variables" from Paragraph Formatting->Suppress if: Containing Empty Variables.
Refer to my screenshot with comment and sample, The Record 1 & 2 are correct, but Records 3 & 4 are wrong.
Download Link:
https://drive.google.com/file/d/1gpjVmVvAtNhh1HhIzyWrGj-7QEDaA1_C/view?usp=sharing