Heavy Silent legion boots, heavy silent legion leggings and heavy silent legion gloves.

Once removed, the game doesn’t allowing me to equip them back via normal means through my inventory nor to store them from my inventory to a thrall, bench and storage.

I press equip on each of those three, the game will display that they got equipped and with in 3 seconds it will auto remove them from my character 's body.

The same happens with these 3 pieces when I farm the silent legion set from jailors at the npc camps.