Media Encoder not calculating values from After Effects media

I'm pretty sure this is a bug, but posting as a discussion to see if maybe I'm just missing something.

Here's my setup.  I have a bunch of my girls' softball games recorded and wanted to add some graphics (scoreboard, scorebug, match graphics, etc.).  I worked up some compositions in AE that draw game data from JSX files.  I have two JSX files - one with functions I use to format the data for AE, and the other with the game data itself.  Each game gets its own gameData.jsx file, but all games share a scoreboardMethods.jsx file.

It all looks at works great in AE and in Premiere when I import it, and if I export it directly in Premiere, the export looks perfect.  When I send it over to Media Encoder, however, the AE layers that get values from scoreboardMethods.jsx revert to their default values.  This ONLY happens in Media Encoder, and I don't get it.

Here's an example.  I have a matchup composition that I insert at the beginning of the game.  This is how it shows in AE:

There are 5 calculated layers on this screen - date, visitor, home, tournament, and location.  All but the date layer pull values directly from gameData.jsx.  Here's the expression javascript for the home team layer, as an example:

var gameDataName = "gameData.jsx"; //Keeps AE from renaming when replacing placeholder
var methods = footage("scoreboardMethods.jsx").sourceData;
var data = footage(gameDataName).sourceData;

data.homeTeam.name;

The date field has to go through some additional formatting, so I run it through a function in scoreboardMethods.jsx, first:

var gameDataName = "gameData.jsx"; //Keeps AE from renaming when replacing placeholder
var methods = footage("scoreboardMethods.jsx").sourceData;
var data = footage(gameDataName).sourceData;

var dt = new Date(data.dateTime);
methods.date_TitleFormat(dt);

And everything works!  It looks fine.  It continues to look fine when I pull it into Premiere:

And if I export it within Premiere, the export turns out great.  However, if I send it to Media Encoder, all the AE layers that pull values from scoreboardMethods.jsx (but NOT those that pull data directly from gameData.jsx) revert to their default values - basically ignoring the expression.  See the difference in the date field here:

I've verified that it's the layers pulling values from scoreboardMethods.jsx by creating a dummy method that just appends some random text and setting some of the other layers to use that function.  Same result - the function fails and the layer falls back to it's default value.

This is really annoying.  I know its related to scoreboardMethods.jsx, but everything (INCLUDING exporting) works fine in AE and Premiere Pro - so I don't think it's a problem with my code.  Not being able to send these through Media Encoder would be a real pain because each game is probably 3-ish hours of encoding.

Any thoughts?