Bones disappearing when exporting as NIF?

[7gag]

I am trying to make something like a candy cane sticking out the mouth of the player, but whenever I try to add the head bone and then export it, the bone disappears. If screenshots are needed I will gladly send some!

[Indarello]

On 1/5/2023 at 10:13 PM, 7gag said:

I am trying to make something like a candy cane sticking out the mouth of the player, but whenever I try to add the head bone and then export it, the bone disappears. If screenshots are needed I will gladly send some!

I guess you just paint head bone instead of copy bones and then add more boneweight paint. 

It wont work in bodyslide if you just paint bone weight that was not on model before