A problem with brush entity blocking light

[voivodpl]

This is decompiled cs_estate. I recreated this bush brush just to be sure everything should be fine.

It appears that one side isn't blocking light at all.
Tried either func_wall, func_illusionary, with clipping without clipping, with blocking light etc.
It only works right if this is a world brush.

[mfaizsyahmi]

you didn't set up zhlt_lightflags.

http://zhlt.info/entity-changes.html#:~:text=attribute%20is%20ignored.-,zhlt_lightflags,-Set%20optional%20lightflags

[voivodpl]

Tried everything I know :D