Hello I am HybridGamingHD this is my first post and I have made this account because of this issue. I installed the Recommended 1.4.6 on my minecraft server and the Twilight Forest mod. To my surprise when I got on the server and into the Twilight Realm its was made of Unnamed blocks, pistons, and many other blocks besides dirt. I have no clue what is going on but I think that the Twilight forest is incompatible with the new terrain additions in forge. The Twilight forest isn't the only mod that I have had this trouble with. Pam's Harvest Craft and the Metallurgy mod have also made my world turn into this strange unnamed place. P.S. I do have a mac but i don't know if that would have any affect on how the Twilight Forest would generate.