not loading

I play a lot of FFA and sometimes the Map doesn´t load entirely on Savannah, I can´t enter the unloaded chunks, it´s like a invisible wall if I try to go in. Is there a way I can fix this or is this a Cuberaft issue?

Hi Cubecraft I was playing Minerware, but when I was flying through hoops the chunks weren't loading so I can't complete the minigame in time. It is not my wifi because my friend also had the same issue Is it possible to prevent this issue by preloading the chunks or something like that? Kind...