I'm not sure how lore-friendly this is, but I have been making assumptions that fluctuations in aether and general scarred/weirdness of the Mor Dhona area might make things such as accurate, consistent potion-making/alchemy go a little haywire from time to time. I have been kind of thinking of it like humidity or altitude when trying to bake, in a sense. I could be totally off about it, but it's been somewhat of a minor point in my RP that it wouldn't kill me to nix it if it turned out to be totally in left field.
