Quests/NPC 1.18 Broke "shadow Of The Beast" - Naga Tails Not Available

The quest "Shadow of the Beast" requires 32 Cobblestone, which can be bought from the "Cobblestone Merchant" in Olux.
That merchant takes one Naga Tail for two Cobblestone.
However, Naga Tails aren't being dropped since 1.18 changed most junk items into materials; he won't take their "Lizard Tail" items.

 

Naga tails still drop as junk items.
Have you tried the swam nagas from the little pond outside Olux? They drop junk items (not ingredients). Theres a fairly specific batch that drop these, not just the normal lizardmen.

 

oh ok well yeah

 

Apparently only Swamp Nagas will work. Naga Fighters and Naga Commanders will not.

 

If Swamp Nagas are working, then what are their coordinates?

I think I have looked everywhere for them, but maybe I am missing them.

 

So you know where Kroac is? He's the guy that needs the cobblestone. There's a pond of Swamp Nagas to the east of Kroac's house and those drop.

 

i need naga tails and reset frost bite so fix the trades on the naga tails

 

Temporary fix is in my quote