[1.06][bug] Equipment assignment problem

I have Leathat Leg Graves and Traveling Boots, when I click on Traveling Boots, nothing happens (the character does not equip them as I would expect), I have to click on the graves and it makes the character unequip them and equip the boots (I don't even imagine what might have happened if I have more boots in my inventory, how would the game decide which to equip) - with other items like cloaks this equiping works fine.