[RESOLVED] Getting a gnarly SimpleJSON can't parse - error when attempting to ExecuteCloudScript from client (Unity)

SimpleJSON err for cloud script exec:

Sorry hard to see -- I'll dig through logs soon and find a clearer version to replace, if need.

Just seeing if you know a general answer before I post details, I'm just running out the door and will come back to edit with more details.

EDIT: I pass an object "EndInfo" that contains the following:

//     public string name;
//     public string username;
//     public string startClass;
//     public Classes.Faction startFaction;
//     public string finalClass;
//     public Classes.Faction finalFaction;
//     public bool won;

essentially a string, string, enum (string), string, enum (string), and bool.

EDIT 2: Works fine with postman. Now I really am wondering if I need to make a separate object just to ToString() those enums. I figured SimpleJSON would do that. This is still my latest theory.

EDIT 3: I tried some mock values within Unity - and seemed to oddly work fine:

// Works
EndInfo.playerInfo mockPlayerInfo = new EndInfo.playerInfo();
mockPlayerInfo.name = "Test Name";
mockPlayerInfo.username = "TestUsername";
mockPlayerInfo.startClass = "Observer";
mockPlayerInfo.startFaction = Classes.Faction.BlueDragon;
mockPlayerInfo.finalClass = "Nightwatch";
mockPlayerInfo.finalFaction = Classes.Faction.BlackRose;
mockPlayerInfo.won = true;

I realized I didn't do any null checks. However, a null value shouldn't effect a SimpleJSON parse, should it? if name = null, for example. It should just do "name": ""