Hi,
Normal maps for individual NPCs (or the player if using a file named 00000007_foot_n.dds) are not loaded. In my example, the folder is BodyAssetOverrides\PerNPC\mymod.esp
For my custom npc, 00005510_foot.dds works fine for the base texture, but 00005510_foot_n.dds doesn't work.
This issue also seems to affect the head normal map overriding as well.
After doing some testing, I found that the last version of Blockhead where normal maps worked correctly was version 10.0. Unfortunately, that version also has a bug that causes horses to become invisible.
I'm using the latest 11.0 release of blockhead.
Thank you for this great plugin.