So, as title says, all blocks from your mod actually somewhat "transparent". Light is passing through any solid block. First screenshot - shaft is blocked by vanilla sandstone block. Second screenshot - shaft is blocked by rebar concrete tile.

Fixed in v1.0.12-b1, opaque full blocks block light now (not cutout, slabs, stairs, this would come with rendering issues with optifine - was a previous issue ;] ).

Hi, thanks for letting know. Opacity issue. Should be comparatively quickly fixed.

When this version will be posted?

Few days to one week, depending how I get the time to chase another rendering issue.

I added the correction for full blocks as described above in engineersdecor-1.12.2-1.0.12-b1.jar, can you confirm that the issue is resolved on your machine?

Works like a charm. Thanks.

Perfect that. Thx again for the report. Cheers -