BL Coding Adding new e1.4.1 lords to existing campaigns

[artifixer]

Hello!
Update e1.4.1 added quite a few new lords to the game, but they do not spawn into existing campaigns. I was looking for a way to spawn them myself, but so far to no avail. I've tried to execute

MBObjectManager.Instance.LoadXML("Heroes", (Type)null, false);

in the harmony postfix for the SandBoxManager.OnCampaignStart method and this adds new lords at least to Encyclopedia (did not test much further), but makes every lord in the game - including existing ones - look like a child. I could not find fix for that. Maybe this whole approach is wrong, but for now I don't have other ideas.

If anyone have insights or at least some general ideas where to start digging and what to look for, any help would be very appreciated. Thanks!