Cleric Spell Bug: Storm of Vengence

It doesn't work right. Enemies within the AoE are supposed to take 3d6 acid damage, and if they fail a save, take an additional 3d6 electrical damage and stunned for 2 rounds.

However, while the VFX fires off, the acid damage is not being applied, and enemies are only making the save vs the additional electrical damage and stun sporadically (once, sometimes twice per casting.... spell has a fixed duration of 10 rounds).

*edit* And at times even when the save roll fires off, and targets fail, they don't even suffer any electrical damage it seems.

Kinda sucks that this is the only AoE non-deity restricted 9th level spell and it doesn't work.