Grineer units missing facial animations

[LambertExe]

So in the past Grineer units used to have various facial animations depending on the state they are in (neutral, alerted, attacking, dead, etc.).

For some time now Grineer faces appear to be bugged and stay only in "neutral" mode regardless of wheter they are dead, attacking or doing something else.

I have tested this in simulacrum on several Grineer units, on current build (Hotfix 30.7.6), the animations are also missing in regular missions.

I am unable to tell since when this issue started to happen, I have noticed it only recently, but I'm sure Grineer used to have facial animations as shown on older screenshots of mine I have found. (embedded below)

Examples:

Flameblade, Guardsman:

Kuva Scorpion, Butchers:

Elite Frontier Lancer:

Ballista: 

The only Grineer unit I have noticed to still have facial animations is regular Scorpion:

Corpus units are unaffected by the issue and they still have facial animations:

Example of how Grineer units faces used to be animated:

Full 6 min video of my tests: