This time the fault is in interface/portraits_indian.gfx, there is an instance of "GFX_southindian_male_base" that should be "GFX_indian_male_base".Now I'm having a similair issue with the faces of Indian men: https://steamuserimages-a.akamaihd....139/E50CCDA05FABB884DE2BA1E4EED338EE73A72099/
I first noticed this with AD 633 Rise of Islam installed but I see it on the vanilla start too now that I closely check.
OTOH, the ironman generic/CC submod works great for AD 633 cultures and came up with appropriate looks for Amazigh, etc.
PS Rise of Islam is close enough to vanilla to work by default I believe.