For a while now I noticed that some NPC guards have a weapon with a broken texture. Verifying game files or updating drivers changed nothing about this. My graphic settings are maxed out and switching between DX11 and DX12 has the same result. I saw someone on the discord server ask about the same bug, so I am not the only one who experiences this.
The only thing these NPCs have in common is that they all use the same weapon model, if they use a different weapon the texture loads as intended.