Since I don't see one elsewhere, and bug lists tend to contain spoilers...
Activating an ability while another ability's animation is finishing will cause the APs to be consumed but the ability doesn't fire.
Braccus's lair has a "Chest of the Souce King". This should probably be a "Chest of the Source King".
The air elemental vendor in the homestead sells blank water books instead of blank air books.
