YTR and Nanman culture mechanism works a little bit different.

For armour, YTR and Nanman generals would get higher grade armours when they are growing up. It works as same as my mod. That's why this mod doesn't support armour upgrade for those cultures.

For weapon, unfortunately, Nanman generals could have a only normal grade weapons. There is no higher grade weapons as refined, advanced, unique grades.

Except of above two features, now it supports weapons for YTR and mounts for Nanman - yes, the Elephant !

Have fun !