When you equip Wisp Noble animation set on other warframes, here's how feet are supposed to be positioned:
With a Secondary equipped:
With an Arm-Cannon equipped:
BUT! When you equip any other primary, let it be a Rifle, a Bow, or a Speargun, feet positioning breaks and looks like this, resulting in a number of weird animations:
DE, pls fix. This bug has been around for years.
Edit.: it is also unique to Wisp Noble specifically, because Wisp Agile works as expected.