Game wont load when going into new dimensions

[George]

HI,

I'm fairly new to modded Minecraft and started a skyfactory 4 world (private server with me and my friends) everything was working well until I tried going into dimensions. When entering twilight forest my game takes ages to load then kicks me out the server while my friends are able to enter and leave without any problem, when I try to load back into the server it just keeps kicking me out and I have to  keep trying to join the server till it eventually allows me to enter or leave. I have tried adding more RAM to the game but this doesn't fix the problem, also I've been searching around and can't find anything to fix it. I would appreciate if someone could submit some answers to fix it. 

Thank you,

George

[D34DPlayer]

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T/C