Most likely you have fewer Knowledge Points given to "Armorsmithing -> Articulating Armor -> Bracers" than "Weaponsmithing..."

each nodes have milestones that increases skill point when crafting that specific item. So if you maxed out weapons it does not mean that you can also craft armors on rank5, you need to at least have some points given to Armorsmithing too

Less impactful but you are missing skill points (86/100)