However, I think I found the problem. For example, let's check Ferdinand II genes in steamapps\common\Victoria 3\game\common\dna_data

beards={ "all_beards" 0 "all_beards" 0 }
mustaches={ "all_mustaches" 0 "all_mustaches" 0 }

Apparently, he's set to have any beard, which means a random one. If you want him to not have one, you have to set it yourself. Fortunately, there aren't that many predefined characters and some of them have hardcoded beards.

I took a look at the files. First, I changed the beard definition to something like this:

european_beards = {
dna_modifiers = {
accessory = {
mode = add
gene = beards
template = european_beards
range = { 0 1 } # For the randomness to work correctly
}
}
weight = {
base = 0
modifier = {
exists = scope:character
scope:character = { age > 16 }
add = 100
OR = {
european_clothes_trigger = yes
european_clothes_pop_trigger = yes
}
}
}
}

The result was as you described.

For anyone using the Western Clothes mod, I made a similar mod that should work specifically for Western Clothes

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2935047403

Doesn't work for me. Sad lyfe

The Taiping still seem to lack hair. Europeans work for me.

Doesn't work for me...

Thank you

In testing, I experienced an equivalent framerate drop when opening the character interface without the mod installed. I did not experience a greater framerate drop after the mod was installed. I am not able to replicate this but will investigate further.

Using this mod cause significant framerate drop when open character interface.

I have now confirmed this is savegame compatible - it will work with your existing save and give your bald characters hair. If it's not working for you, you probably have a mod that modifies the portrait files. The "Western Clothes" mod was giving me problems, for example.

@Erkli Pasha not sure if it will work for existing saves. I am not sure how the game creates, saves, and loads character DNA. It *may* work with future heirs in an existing game: i.e. if your monarch dies, his existing heir may stay bald, but HIS heir may have hair. I will have to test it.

Weird, still getting bald heirs...hm

It's a conspiracy I tells ya, bald men are taking over the Victorian world :D
Cheers, hope this mod fixes this annoying issue indeed.