Ok, this is possibly out there already, but with no end of googling I cannot find the specific answer to the question of how Delves contribute to the Great Vault.
My situation is that I have run several 6’s and a handful of 5 - but right now my vault is saying
Both Boxes 1 & 2 - Tier 5 reward, complete a tier 6 to up the ilvl of the reward.
For box 3 it is giving a tier 1 reward, and telling me to run a tier 2 or higher to raise the ilvl - I have run at least 2x 6s since this message has been up.
I have also done a load of world events, which I know count as Tier 1, so I am at a loss as to how many Delves of a given key level I need to do to guarantee the third slot to start climbing in reward ilvl.
Do only bountiful delves count towards the vault, or is it any?
Does anybody know if there is some weighting like there is for mythic dungeons where according to a Wowhead article I’ve read that for keys it is the highest, fourth highest and eight highest keys that dictate the ilvl of the reward for those 3 boxes.
Anyone know exactly how Delves and World Events actually contribute to the Vault?