Okay so regarding the difficulty I did just that the /mv Modify set difficulty normal world but… It kept reverting itself back to Hard.
I have placed Instructions at /warp Claiming on How to fix it.
And I have tried Generating a new world and I had another 3 Players join me I granted Temporary fly and we and went different directions to find nothing.
A new bug has also appeared a Galaticraft one, some players when they join has included myself get the Oxygen icons overlapping the Mini Map on the overworld, get the Space Gravity, we can see the Sun and Earth but… We are on Earth, only way I have been a le to fix it was Reloading Technic but then there was a chance of getting the bug again, I have tried reloading the plugin and everything but nothing