[Deneir_Allaston]

The "Trengal Plate" quested heavy armor from Trengal Keep, and the Silverlake region quests have the graphics of reguler grey leather armor. The missive obtained "War Solider's" armor from Southwatch also have a simple leather armor graphic, both of these types of armors are made for Platemail wearing characters, the graphic Im assuming is a mistake.

The "Kingsweave Chainmail" medium armor quested from Trengal Keep and Silverlake region along with the missive obtained "Ridgefury Pelt" armor from Southwatch have exactly the same armor appearance- which might not be a bug but it is kind of disappointing going from level 20ish to level 35ish armor, and looking exactly the same.

The heavy armor known as "Dread Lord's" armor from Tsang (BP and Legs) also have a leather armor appearance.

These are the improper armor models Im aware of, Im sure theres some more.

Apparently many quested and dropped Monk/Disciple 2HB and 2HP weapons have no graphic as of the last patch, Crescent Staff of the Fallen, etc.