Huge Discrepancy in Demons resistance
Right click your pet and hit View Combat Attributes. Then click Damage Resistance. The number there will answer your question.
My guides:Dark Melee/Dark Armor/Soul Mastery, Illusion Control/Kinetics/Primal Forces Mastery, Electric Armor
"Dark Armor is a complete waste as a tanking set."
This shows me another bug which is that Ember demon is not getting any benefit from its own buff ember shield. Also there accuracy is only 75 base when I have them sloted for +96% accuracy?
You're reading the numbers wrong. The 75% you're seeing is the "base to-hit": the chance of hitting before any to-hit or accuracy buffs are applied. Elsewhere in that window should be a "1.96" or "196%" representing your accuracy slotting.
If you right click the summon demonlings power and then go to info then resistance it shows him as having 50% resistance to smashing/lethal. IF you click the resistance buff that is to the right of the pet box it has smashing and lethal resistance at 26%. Which number is correct?