I’ve managed to solve that, see:
The first part and the most important generates a 4500 studs diameter sphere using two loops with a wait(), it uses cframe values to represent every tree, then a ray is casted in direction of the sphere, a reference cframe value is lowered and a remote event gets fired with the cframe value’s value.
Then every client has the oportunity to generate trees whenever they’re close to a cframe, when the tree gets chosen from a folder the tree is sent to the server, the server clones the tree and sends it to all the clients so that they can render it, then the cframe is removed from the array.
I’ve disabled client side tree generation and it worked, I also have plant and mineral generation so the problem seems to be trees.