on minecraft java There is a visual glitch which you can see black outlines of blocks placed

Put the summary of the bug you're having here

What I expected to happen was...: to not see the outlines
Describe what you thought should happen here

What actually happened was...:i saw the outlinea
Describe what happened here

Steps to Reproduce:
1. go to a world
2. ...build a big wall
3. ...walk back 50-100 blocks