I am also having an issue with purchasing the winterberry bush node from Slooshoo in Bitterfrost Frontier. I had the bloodstone node before the new living story release and at first, I was unable to purchase the petrified wood node in Ember Bay until the recent patch. Post patch, I was able to get the wood node and access it in my home instance, but the winterberry bush node is not showing up anywhere on the vendor’s list of items to purchase in Bitterfrost.