How to reproduce
1. Enter a minecart
2. drive it on some rails
3. watch the server light
Video of the issue
Related issues
Comments


For whatever reason, the Y coordinate indicates that the light level is being displayed for the block below the rail. Since that block is solid, it will always be zero.

it will be fix?

Affects 1.16.3

Affects 1.16.4
Can confirm in 20w51a.
Can confirm in 21w03a.

Can confirm in 1.17.1.

Affects 21w40a

still in 1.19.4
?