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why the world generated in single player does not work on multiplayer?

Do you mind clarifying exactly what you mean? Not sure i'm understanding the issue. ^TK

ah when i generate the world in singleplayer and build then i try to move the world to my server the world does not work

We apologize for the inconvenience, this is currently a known issue and the team is working on a fix. We have no ETA at this time and appreciate your patience. ^TK

could the dev team please make the game run in any type of computer I dont understand why the game run in my cellphone and it runs so poorly on computers like mine which is an i5 processor all my Brazilian friends stop playing minecraft because the game does work anymore.