While farming herbs in Drustvar (so far the only place it has done this) you have to double pick the herbs to get the full herb, pick it once you get one pick it the second time to gather the rest of what that herb has to offer.
EDIT: It seems to be just the first herb of the type you pick. First riverbud, anchor weed, winters kiss, sirens sing. at least that is what is showing in my chat window.
I saw the same thing with mining in Mechagon. First deposits of Storm Silver ore and Platinum ore.
I get the feeling this same bug is affecting more than just herb gathering. I have noticed that type of thing while mining on an alt, not to mention with other loot situations.
I’m seeing the same problem now with looting a corpse and with skinning. And even looting mechanized chests in Mechagon.
It’s random. It isn’t the first or second.
Also, it isn’t just nodes. It’s old raid / dungeon bosses too. I’m having to loot them twice.