Created a Bard at level 17. Picked up the feats Eldritch Heritage (Draconic Bloodline), Improved Eldritch Heritage 2x, Greater Eldritch Heritage.
Eldritch heritage grants the basic 1d4 claw attack, but it does not progress as it should with the Draconic Bloodline (as tested with Sorcerer). Instead, it adds the "Elemental Spit" power.
Dragon Resistances via Improved Eldritch Heritage grants "0 against acid damage and +0 natural armor bonus". Works correctly for Sorcerers.
Breath Weapon deals 0d6 damage and is not including character level in the DC as it should with the Heritage feats.
Wings works as it should.
Windows 10 64 bit