Thus far, when casting druid spells, Divine Spell Power won't kick on. I'm unsure if it's supposed to, or not supposed to, so that may not be a glitch. Every druid spell fires off, and doesn't get the benefit of the enhancement.
But one thing that is for sure a glitch, seems to be that Angharradh as a deity is no longer set to support Neutral Good clerics, I can't confirm if it's the same with Chaotic Neutral. Angharradh herself is Chaotic Good, so it ought to be fine to be neutral good. On casting one of my cleric spells, trying to test Divine Spellpower, I received this.

If someone does peak into here, and knows definitively if Divine Spellpower -isn't- supposed to work for a multiclass' other spells list, please do lemme know so I can quit being a silly billy with it.