Atlas noble animation set uses wrong animations when using javelins and wrist-mounted secondary weapons.
Wrist secondaries use Nidus noble animation instead. This seems to have occurred rather recently, as I recall the Atlas set using an animation similar to its single pistol animation. Actually this is the case for all idle stances.
When using javelins it will use an animation from another set that I don't recognise. This has been the case for as long as javelins existed.