Defensive stance macro

I've been trying to use a defensive stance macro ( Cast defensive stance and equip 1 hand weapon and shield during combat). The macro works well but when it equips both the shield and the weapon it instantly unequips the shield without me doing anything else. Is there a way to fix this ? Thanks in advance

jc round gems?

/cast Defensive Stance
/equipslot 16 1h weapon name
/equipslot 17 shield name

That's the macro i'm using, but the problem still exists

/equip Bloodvenom Blade
/equip Wrathful Gladiator's Shield Wall
/cast Defensive Stance
that one is mine.. try that one..
but use your shield and 1hand