When Mipmap Levels are turned on, blocks and hotbar turn colors before world loads

What I expected to happen was... everything to be normal

What actually happened was... the blocks within my screen and the item in slots on my hotbar all turned weird colors. Watch the video for a better understanding.

Steps to Reproduce:
1. Turn Minimap Levels to "Off"
2. Turn Minimap Levels to "4" (haven't tried "1", "2", or "3")