Unlocked Trait

[olive fossil]

Hello, I'm not sure if it's a bug but I never unlocked one of the rare traits in the Beyond (Series I). It seems that it is Hydrostatic Equilibrium.
I'm at Episode 22 and I wonder whether I really am unlucky or if it's a real bug.

[short axle]

ｉｔｓ　ｂｅｃａｕｓｅ　ｓｅｒｉｅｓ　Ｉ　ａｎｄ　ＩＩ　ｉｓ　ｄｉｆｆｅｒｅｎｔ

ｔｒｙ　ｇｅｔｔｉｎｇ　ｙｅｌｌｏｗ　ｄｗａｒｆｓ

[olive fossil]

I already did and it never worked

[limber wedge]

This is just really bad luck