Put the summary of the bug you're having here

What I expected to happen was...: Sun to be smaller and still
Describe what you thought should happen here

What actually happened was...: Sun was 5 times bigger and its light was like a disco ball, disappearing and reappearing every tick. Edit: The moon isn't glitching, its just the sun
Describe what happened here Edit 2: wtf is going on, the sun looks like the 3rd picture now, is my world corrupting or something is wrong with the textures? Edit 3:it happens on other worlds too.. and unknown servers' photo is same as this.

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here It just happens when i enter my singleplayer world
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