Picking up items in bundles prevents getting advancements from the items inside.
If I find a diamond in a chest, move the diamond into my inventory, and close the chest, I get the Diamonds! advancement.
If I put the diamond in a bundle before moving it to my inventory, I don't get an advancement when closing the chest.
I can confirm this is 20w51a too it won't let you get the advancement "Diamonds!" if you put them into a bundle first.