An issue where base camp upgrade items were rolling on an already obtained item and then failing has been fixed - you will now more consistently get the base camp upgrades if the drop table lands on it.
Are you shitting me?
Correct me if I'm wrong, but if I'm reading this right, this just means you'll get the rib bone if you roll for the oils but you already have them, for example. It doesn't mean the original drop rate was bugged or anything, it's just a QoL thing.
nail on the head