I can't find any helpful tutorials and i'm new to the whole modding scene. Under the general tab, add this line of text, (without quotes) 'bAllowMultipleMasterLoads=1' If you don't do this, you will receive an error everytime you try to load more than one master file. To understand why these bug occurs, we need to understand where is the problem. Go to your SkyrimEditor.ini file located in your Skyrim directory. There are 3 things required to change an NPC appearance: 1, ESP entry for NPC adjustments, which you can see in Creation Kit or TES5Edit.
I am going to submit a bug report with all of the things i have discovered trying to get this to work in MO2. Skyrim change npc appearance creation kit Make New Folder and naming it Creation Kit.