I get strange graphic errors in MC?

I'm getting some strange graphics errors in Minecraft. Any ideas why?

I use the latest version Optifine and am in 1.16.1. I also get the graphics errors in 1.15.2

Where is there a graphic error?

In the sand a little further back in the picture. Especially on the right

Do you mean this red orange?

Yes, I never had that before

Reinstall game?

I'll try ^^

Looks like you're showing a coordinate system. Have a look at the Optifine Settings.

It is really a graphic error. I had that too.

There are the following 3 graphics settings that solve this problem:

Mip mapping
Anti-aliasing
Anisotropic filtering

You can find these settings in the control panel of the respective graphics card.

Thank you so much! That solved the problem! It was anti-alasing