apparently this is a duplicate but it is still present in 1.14 even though the other is marked resolved

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enabling mipmapping creates a graphical issue where the outlines of blocks create a

What I expected to happen was...:
mipmapping would mipmap and not create this bug

What actually happened was...:
it created lines that look through the void

Steps to Reproduce:
1. set mipmapping to any value (all seem to have the same effect)
2. save settings
3. look for a place where the ground is >1 block lower than you and about 5 away and look for teal/orange lines depending on the in game time