I found a trapped or false spawned spider near the Pirateship in the south, the spider will attack you through the rock causing poison damage. Too bad I am not allowed to upload a screenshot. There are couple black spiders on a hill and below is the trapped spider near ironore site and a small step in direction to the ship.
Also I think the complete Ship is bugged, after about 30 min NPC farming I discovered flying NPC and sudden Death while you’re still farming. One Player saw this and told me to stop running because I will fall down the ship but I wasn’t on the ship at all and suddenly I had the poison dying animation and died. After waking up in my bed my whole base was gone so I relogged and I came out far in the North near the Breach.
Cheers and have a good night.
(Sorry, new users can not upload images.) Thx bugreport ^^