How can disable limitation of rendering in landscape

hi everyone. i don’t know is my question well asked or not, but i will explain you what i mean. each time i create a landscape , i face a same problem, and it’s the limitation of rendering in landscapes. i attached a picture, look at it. i used landscape auto material for this landscape, but as you can see meshes loaded just for a limited distance. it’s not about LAM, if i add meshes manually i will face this problem too. i read about this situation, somewhere says delete or disable LODs, or changes some values in ue, and many other ways. none of them worked. but i can see other people can use it, and everything rendered and loaded so well in distances.
now please, if there is anyway (i am sure and i know there is some ways) that you know to how do this work, or any question which have the answer , please let me know. thanks.

and the answer is to play with the cluster in lod and foliage.