Put the summary of the bug you're having here

What I expected to happen was...:
Player should be able to see blocks at all distances, no matter the surroundings.

What actually happened was...:
When any type of block was in the right position, the player is able to see through them and it looks like when you put glowstone in a player's head with a piston.

Steps to Reproduce:
1. I have produced a block-by-block reproduction, and the glitch does not happen. Maybe it can only happen when removing pre-generated blocks?

Sorry I took a lot of screenshots to show...
TESTED works with any blocks!
Log shows nothing unusual so I didn't upload it, request it if it is needed to fix this.
NOTE: Only seems to work when facing diagonally, never straight-on.