Put the summary of the bug you're having here: Everytime I turn my Render Distance further than 6 chunks, a large glitch appears.

Describe what you thought should happen here:

I expected to turn my render distance all the way up to 16 chunks, and have no problems, but this large glitch appeared.

Describe what happened here:

I had decided to turn my render distance up to 16 chunks, but when i did so, a huge glitch appeared making my whole world freak out and change rapidly,(I understand this sounds weird, but let me explain thoroughly.)
When i looked around me every chunk in sight was the same, whether it was a chunk in the air that shouldn't have had terrain in it, or underground where there should be pure smoothstone. (My Screenshots will show you clearly what i mean.

Steps to Reproduce:
1. Simply increase render distance by 7+
2. Look around (The higher the render distance, the bigger the glitch,

Just to add, this may only happen to just me or certain people, as my friends have never had this when increasing their render distance.

Thanks
Ellis