@sucram-dev where you intiialize/create the world,I’m guessing maybe you might wanna increase the world size from 2000x2000 to something like 10000x10000 or something else bigger you would have to mess around with it.
That might solve the problem
I think you might wanna use other projects like the 2 player 3D doom project as a starting point and then edit that to your likings and make it more sandbox-ish