Generation with returning to the overworld from the nether

I built a portal at the topmost allowed area of the nether at the overworld position of 200, 120, -128 in the nether it is 25, 120, -16

Regardless the texture resource used, I have used ones I bought amd 2 from the realm plus pack. I like the stremline for the consoles but when more than myself is on, it works, I have used the world with a switch playing as well while as I play on the Xbox one console and the same aforementioned location works perfectly for ll 3 portals and loading the textures without a glitch.

When I play alone on the same realm and texture pack, the world takes a little longer to load and then I have a large void in the center of the built area but the mobs and crops are seeable but not barrels and wall textures yet the rest of the area is viewable aside that limited affected zone.

Your assistance is appreciated