I really don't want to go through the whole process of explaining every detail.
Basically I use steam, gameplay bug, current version as of now (not sure what it is called), bug titles: 2 Roebins and duplication of times
Basically it works like this. You use the skyworthy in Hamlet and hold the roebin item on you, roebin comes to survival (which isn't suppose to happen) and once there, you put items in roebin e.g 20 wood and you leave to go back to hamlet. Once in Hamlet, you collect the items from roebin like usual, and you will recieve the 20 wood you put in roebin. Then you go back to survival, and open roebin and you will find 20 wood, which means you will have 40 wood altogether, 1 stack from survival and the other from Hamlet. You can do this with any item in the game.
I am not sure of how the other bug of having two roebins came about, but this is my assumption: Basically you need the eyebone and the roebin item. With the roebin item and eyebone in your inventory, nothing will happen. Drop the eyebone on the ground, keep the roebin item. Relog, and another roebin will spawn near the eye bone. The duplication glitch did not work with the 2nd roebin.
Just a question, you guys gonna fix your gloomer glitch to spawn like 100 krampus by logging in and out which respawns gloomer on a full moon? That glitch has been in the game for so long and it is rog, which is not in beta...