Game Mechanics: Issues with charmed pets

[Karnek]

On Saturday I charmed Targin the Rock and started giving him things to wear. He will accept bronze drops but they look like fine plate when he equips them rather than bronze armor.

Also, he had 2 weapons and someone handed him a spear and it caused his bronze helm graphic to disappear. I am not sure why handing him an item he wouldn't/couldn't use at the time would cause his helm to change to no model.

[Puyen]

Possibly a max item limit?

[Karnek]

Unlikely because he equipped the bronze BP that was given to him shortly after with no other effects. I think if anything it is some kind of display bug with his helmet.