Trying to load into multiple maps causes a crash. This does not apply to saving which works as expected saving to the json. Upon loading you will get the following error.
Reading variable: data
Reading variable: MapTestTwo
Map's key type can be only int, string and enum
...Continues into the mod path
Having a json class that contains the variables, saving and loading within itself
autoptr TStringIntMap MapTestOne = new TStringIntMap;
autoptr TStringIntMap MapTestTwo = new TStringIntMap;
This crash only applies when trying to do this to multiple maps - If your Json file only contains one map this error will not occur, and it will be loaded correctly.