@Token Waterfall quest seems to bug out sometimes only at the ending when you have to put the runes on the pillars.
Sometimes it will have 1 to two runes in inv left and gets stuck without doing anything.
(to finish it needs to use those 2 runes on the correct pilar, put the amulet on the statue, use the urn on the chalice and done)
Not sure if you were already aware of this.