I've been developing a shader pack, and have had to make all block light sources except torches, and lanterns glow with an emissive layer, as they do not have one by default, as the torches and lanterns do.

Steps to reproduce:

1. Go to [Minecraft with RTX PBR Texturing Guide | GeForce News | NVIDIA|https://www.nvidia.com/en-us/geforce/guides/minecraft-rtx-texturing-guide/] and download the example shader (or any shader pack without the blocks added manually)
2. enable the pack
3. Only torches and lanterns emit light with RTX on

The screenshots only show lava and fire, but this bug applies to all blocks