I see you got bracers trinket and gloves (grats!), and it's the same issue as this one
. Since vanilla, Blizzard always used diffennt item IDs for different items, but right now, they use the same item ID for items across all raid difficulties, they just get a different "bonus" depending on the difficulty. Example for your bracers:http://us.battle.net/wow/en/item/112739/raid-finderhttp://us.battle.net/wow/en/item/112739/raid-normalhttp://us.battle.net/wow/en/item/112739/raid-mythic
However, to keep things .... fun ... they also didn't change the items you're wearing to match the new system, for example, your chest (which you got before 6.0.2) doesn't have the ability to change stats:http://us.battle.net/wow/en/item/99419http://us.battle.net/wow/en/item/99419/raid-finderhttp://us.battle.net/wow/en/item/99419/raid-normal
give the same details.
We have a fix for this in WoD, but it'll take a while to sort it out for current release.