When right-clicking the piles of bones to gather, causes CTD.
Clicking, then using gather hotkey, usually works.
Also, the vilitus bulbs use intuition to gather but require t5 tool. Intuition skill is gained with Adventure levels, not craft levels. So gathering with a t1 harvest blade doesn't work. Since it is a quest item, the tool required should be lowered to level 1. If it is meant to be restricted by craft level, they should require ingenuity skill to gather, not Intuition.
The Niesa's Rub potion effect has no benefit, looks bugged.
I sure hope this potion has a decent effect and will stack with other buffs..