List Variable is populated in S object but not showing up in Network Calls

[#1]

We have event based logging for page views, so our default page views are logged via Event Based Rules.

Within this rule, I've tried setting a list variable in the Custom Conditions and Custom Page Code, and the list variable only shows up in the network call a fraction of the time.

I've also tried setting it in the Custom Page Code code in the Adobe Analytics Tool settings, but still no luck.

I can confirm that is always added to our s object, because I do a console log to print out the list variable right after setting it. 

Has anyone else run into this?

[#2]

So we are trying to capture this list var in the page view calls, not in the link tracking calls.

What is frustrating is that I set the s.list2 and then print it in the console, which works 100% time of testing.  However it almost never shows up in the actual network call!