Chains are invisible with sildurs shaders and maybe others too. The knot is there and the shadows, but not the chain itself.

How come you wont fix it?

he don't know how to fix, so just let it go.

Yes, I do not know how to fix this issue.
I do wonder if leads are visible in that shader, since the chain works similarly.
If they are also invisible, then it is an issue with the shaders.

Hello,
before I open a new issue with the topic "invisible chains", I better ask if this:

is maybe the "same" bug like the one from Onion ?
(in my case it's not a shader thing and not Sodium or Optifine)

1.19.2, fabric 0.14.9, CC 2.1.3

If you have a mod installed or a certain resource pack on, that could break it. If you don't, then I don't know since mine broke when I used optifine of sodium.