Problem with lighting.

[Stas-OP]

Hi, I downloaded a mod for forge version 1.20.1, when I put some light source next to a modified block (in my case a "wall", an inverted half-block of pure material from the mod),the light passes through, but the block itself is not illuminated unless another, whole block is placed next to it. And exactly the same when the lights are turned off. Optifine is not installed, it is still downloaded from mods Chisels an Bits , but I hardly use it (for some reason the lighting there works fine). The mod is also installed Decocraft, but I don't think it has any effect. I'll be incredibly grateful if I can fix it. Thanks for the mod!

[CreativeMD]

This should be fixed in the newest update. Thanks for reporting this issue!