This is not showing up in my wardrobe at all unless I select the checkbox for All Items. I've tried removing it and putting it back in, I've tried hard refresh, I've tried 4 different browsers-Chrome and Opera show all Icy Runes Tattoo Sheets being in my wardrobe except Left Leg. Firefox and IE wouldn't even show the wardrobe at all, so that's anther problem entirely.

The avatar will save with the left leg tattoo sheet on it after I've found it by selecting All Items, so the wardrobe's not completely confused on whether I own the item. ;P

[edit] So, now that I've found and used the tattoo sheet via All Items, it does show up in my owned items after I toggle All Items off.