Describe the bug you're experiencing

When loading some chunks the contents of blocks from mods like framedblocks, copycat, AE2 and pipes goes invisble. In the case of the first two the frames of the blocks are still visible:

But for AE2 the blocks just becomes invisible:

Trying to walk on them causes glitchy movements.

The logs mention farsight at line 7799 that appears when moving into the view distance of the chunk:
https://mclo.gs/lg5H6bG

Disabling farsight causes the error to go away.

I haven't been able to discern what causes this to happen in some chunks and not in others.

Reproducability

1. Stand in an affected chunk.
2. Move away from the chunk until it is no longer visible.
3. Move back into range the blocks go missing.
4. Teleport away from the area out of view distance
5. Teleport back and the blocks are visible again.

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.20.1

Modloader version

Forge

Logs

https://mclo.gs/lg5H6bG

More testing showed me that issue wasn't due to farsight, it only triggered the bug. The cause seems instead to have been the rotor from the mod extreme reactors. With it present the behaviour appeared without it everything works.