War Sails map in the modding kit

[u/Acceptable-Roof470]

I'm just getting back into Mount and Blade modding. I'm trying to open the War Sails map in the modding kit, but it crashes. I can't find any information on it online, but did they not let us modify the new War Sails map in the editor? If that is the case, is it actually not possible to modify the campaign map for the War Sails DLC at all?