Open Doesnt Start As Single Tree World ?

Summary of the problem Doesnt Start As Single Tree World ?

Pack Version 2.5.5

What is the bug? When I start my server and go on the world I have a vanilla world no single tree and dirt block literally a vanilla world anyone know a fix ?

Mod & Version

Link to log file

Is it repeatable? If I delete world and restart same thing

Known Fix

 

And if you try this with the Curse Launcher and a Single Player world?

 

Make a single player world. Make sure you start with the one tree on dirt. Then exit/save. Now copy files in that save over to the world folder of your server. Note you may want to delete everything in the world folder of the server before you start the copy from your SSP to the server.