Hi I recently generated a new world for my Modded server and for some reason whenever I try to Jump (excluding Auto Jump) It kicks me from the server and tells me a fatal error occured. I don't know why this occurs but It's really confusing for me as I had only created a world, done a bit of stuff, realise mods aren't installed, install mods, then join the game and get kicked when jumping. Help is Required!
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