I recommend using the Fullscreen Barbershop mod https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2220326926 to better handle the increased number of Barbershop categories.

If you do, place it above the Amerindian Steppe Tribe and any compatches in the load order in the Launcher.

No additional compatch needed. Only issue between the mods is not being able to select character poses directly in the Barbershop but you can use the 'Customize' character interaction to select some poses for male characters of this culture.

Published a separate mod that only includes the Mesoamerican culture located on the West Aftican coast around the de jure borders of the Kingdom of Guinea in 867 and 1066 : https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2465714157

If you instead would like to use the Sunset Invasion AND Community Flavor Pack AND the Amerindian Steppe Tribe mods all at the same time, here's a link to a compatch for all three :
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2435426385

- The load order in the Launcher needs to be like this for these mods :
= Community Flavor Pack
= Sunset Invasion
= Amerindian Steppe Tribe
= Amerindian SI CFP Compatch