[My Mausolon is missing from my inventory!!! T_T please Help!!!]

I went back and played the game again for the update, then when I checked my items my Mausolon is missing, is there a way to get it back? please help. 

[Change Iron Skin to use accent color?]

I recently played warframe again because I missed my rhino... but the accent color with iron skin is making me cry, I like looking at rhino while in missions but he looks like he fell in melted metal when iron skin is activated. :( he's ducking ugly. white/black and gold-like colors are my favorite. with iron skin now, he looks like he's covered in edible golden foil topped with a dash of white cream(attachments and syandana/seperate color from the ironskin accent colors). xD