It seems that the nodes are changing when the build is updated (or at least that is my experience) personally it is driving me nuts that I have to search all over some fairly unforgiving maps I have alreadt ckeared to 100% status over and over again just to find some very scarse ressources.
I understand why the devs are trying to keep the amount of end-game crafting ressourses in semi-short supply, but in my oppinion this seems to be working well the the gem stones, blodd vials etc and ectoplamas there seems little need to also restrict the base ressources of orichalcum and ancient wood to these very very low amounts of daily random node respawns only to force us to grind the 10-15 nodes there is available each day just to keep up with what you need when you also grind blood vials, claws, ectoplams etc etc.
So in short, ease up a bit on these ressources, it’s getting a tad too grindy, just a tad.