so then when I log in to mine craft in the mod pack it ether makes a skyblock land but with no block that can can mine also I cant open any thing on the island I make and the second one is it makes my land that I made and all the mobs are gone also it includes blocks that are on its only me and my inventory but if i make a new world it goes away but when I delete that game with the bug it goes to the other game I created